JP7208861B2 - Simulation result visualization system - Google Patents

Description

The present invention relates to a simulation result visualization system for piping design.

When designing the installation position of a flowmeter in a piping system such as a nuclear power plant, if the flowmeter cannot be installed in a position that satisfies the standards related to safety standards, an actual flow test or a three-dimensional alternative to the actual flow test It is necessary to conduct fluid analysis simulations and use the results to evaluate the effect of the flow field in the piping system on the accuracy of the flowmeter.

As a technique for evaluating the measurement accuracy of a flowmeter in such a piping system, for example, Patent Document 1 discloses spool structure data of a spool of an ultrasonic flowmeter and a piping flow path of a flow path through which a fluid to be measured flows. data, fluid condition data of the fluid, and temperature condition data of the fluid; actual machine condition storage means; the spool structure data; the water supply piping flow path data; the fluid condition data; A coupled analysis means of turbulence analysis and structural analysis for calculating the flow velocity distribution in the spool and the displacement of the spool under the conditions of each data at the time of flow measurement using data, and the flow velocity distribution and analysis result storage means for storing displacement data of the spool; ultrasonic wave propagation analysis means for performing ultrasonic wave propagation analysis on each measurement line of the ultrasonic flowmeter using the analysis result; and each measurement Flow measurement accuracy analysis means for calculating flow measurement accuracy from the result of ultrasonic wave propagation analysis of the line, deviation in at least one of the spool structure data, the piping flow path data, the fluid condition data, and the temperature condition data and a sensitivity analysis means for performing the ultrasonic propagation analysis and the flow rate analysis, and performing a sensitivity analysis of each parameter, and a design and manufacturing support data output means for outputting the design and manufacturing support data based on the sensitivity analysis result. A design and manufacturing support system for sonic flowmeters is disclosed.

In addition, Patent Document 2 describes a method for verifying an ultrasonic feedwater flow meter for a nuclear power plant, in which conditions are set for a simulation test in which water flows at a flow rate equivalent to the actual equipment using a flow path that simulates the conditions of the actual equipment. The measurement accuracy is verified by a simulation test verification step for verifying the measurement accuracy of the ultrasonic flowmeter under the conditions of the simulation test set in the step and the condition setting step, and the flow path simulating the actual machine and the actual machine operation A flow velocity distribution calculation step of calculating the flow velocity distribution by flow analysis under the conditions, a sensor position calculation step of calculating the sensor position under the actual machine operating conditions, and calculating ultrasonic wave propagation considering the flow velocity distribution and the sensor position. The measurement accuracy is verified by an ultrasonic propagation calculation step and an analysis verification step for verifying the flow rate measurement accuracy from the ultrasonic propagation calculation results calculated by the ultrasonic propagation calculation step, and further by the simulation test verification step A verification method for an ultrasonic water supply flowmeter is disclosed, which includes a double verification step of comparing the verification result of the simulation test with the analysis verification result of the analysis verification step to determine the validity of the verification result.

JP 2012-013416 A Japanese Unexamined Patent Application Publication No. 2011-112533

By the way, in the conventional technology described above, while it is possible to check the measurement accuracy of the flowmeter, another method is required to investigate the error factors of the flowmeter from the entire piping system. As one of the methods, for example, there is a method of performing a fluid analysis simulation and using the result to determine the error factor. However, since the fluid analysis simulation is a three-dimensional analysis and the amount of information is very large, there is a problem that it is difficult for the person in charge of design to judge the validity of the results.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simulation result visualization system that allows a person in charge of design to easily determine the validity of a result from a three-dimensional fluid analysis simulation result.

The present application includes a plurality of means for solving the above problems. To give an example, the start coordinates, end coordinates, length in the direction of the pipe axis, and and a piping system design information holding unit holding diameter information, a fluid analysis simulation unit calculating physical quantities related to fluid phenomena at each time based on physical formulas simulating fluid phenomena in the piping system, and information on the physical quantities. In a simulation result visualization system having a visualization unit that summarizes and draws and outputs the drawing content, the visualization unit includes a physical statistics calculation unit that calculates physical statistics from the physical quantity, and pipe axis coordinates in the piping system and a graph drawing unit for drawing a physical statistic visualization graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the physical statistic.

According to the present invention, the person in charge of design can easily judge the validity of the result from the three-dimensional fluid analysis simulation result.

It is a figure which shows the hardware constitutions of the simulation result visualization system in 1st Embodiment. FIG. 4 is a functional block diagram showing processing functions of a simulation result visualization system; 4 is a functional block diagram showing processing functions of a piping system design unit; FIG. 3 is a functional block diagram showing processing functions of a 3D fluid analysis simulation unit; FIG. It is a functional block diagram which shows the processing function of a piping route information management part. 4 is a functional block diagram showing processing functions of a tube axis coordinate calculation unit; FIG. 4 is a functional block diagram showing processing functions of a physical statistic calculation unit; FIG. 3 is a functional block diagram showing processing functions of a graph output unit; FIG. 3 is a functional block diagram showing processing functions of a 3D data output unit; FIG. It is a figure explaining the processing flow of a simulation visualization system. It is a flowchart which shows the processing content of a piping system design process. It is a flowchart which shows the processing content of a piping system design process. FIG. 10 is a flow chart showing processing contents of a fluid analysis simulation execution process; FIG. 7 is a flow chart showing processing contents of part information extraction/addition setting processing; FIG. 10 is a flow chart showing processing contents of a section defining process; FIG. 10 is a flow chart showing processing contents of a tube coordinate calculation process in the physical statistics/tube coordinate calculation process. 10 is a flowchart showing the details of physical statistics calculation processing in the physical statistics/tube axis coordinate calculation processing. FIG. 10 is a flow chart showing the contents of a graph output process in the graph/3D data output process; FIG. FIG. 10 is a flowchart showing processing contents of 3D data output processing in the graph/3D data output processing; FIG. FIG. 10 is a diagram showing a data configuration of various data in a recording device in a simulation result visualization device; It is a figure which shows the data structure of parts mesh information, a parts list, and a piping structure list. It is a figure which shows the data structure of component information. It is a figure which shows the data structure of piping configuration information. It is a figure which shows the data structure of piping route information and a piping route list. FIG. 10 is a diagram showing the data configuration of a simulation condition/model list; It is a figure which shows the data structure of a simulation result. FIG. 4 is a diagram showing a data configuration of cross-sectional information in each component on a route; It is a figure which shows the data structure of a cross-section unit simulation result. It is a figure which shows the data structure of cross-section physical statistic information. It is a figure which shows the example of a screen display on a display. It is a figure which shows the hardware constitutions of the simulation result visualization system in a modification.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First embodiment>
A first embodiment of the present invention will be described with reference to FIGS. 1 to 30. FIG.

FIG. 1 is a diagram showing the hardware configuration of a simulation result visualization system according to this embodiment.

In FIG. 1, the simulation result visualization system comprises a simulation result visualization device D100, a display output unit D105 and an operation input unit D106.

The simulation result visualization device D100 outputs a graph of the simulation result, 3D data of the piping system, etc. to the display output unit D105 in accordance with user operation input from the operation input unit D106.

The simulation result visualization device D100 includes a CPU (Central Processor Unit) D101, a RAM (Random Access Memory) D102, a recording device D103, and an I/F (Interface) D104. The CPUD 101 executes arithmetic processing according to a program for visualizing simulation results. RAM_D 102 temporarily stores data in a program for visualizing simulation results. A recording device D103 records programs, data, and the like for visualizing simulation results, and corresponds to a hard disk drive or the like.

The recording device D103 stores a piping system design program, a 3D fluid analysis simulation program, and a visualization program as programs for visualizing simulation results. Various data D1 used when executing these programs are also stored.

The piping system program creates parts of the piping system according to the operation input from the user, constructs the piping configuration by connecting the parts, constructs the piping route by specifying the route on the piping configuration, and displays the piping route information. is stored in a recording device as The 3D fluid analysis simulation program designates piping route information, simulation conditions, and a simulation model according to an operation input from the user, executes simulation calculations, and saves the simulation results in the recording device D103.

The visualization program creates an image including a pipe axis coordinate, a graph of physical statistics, and a 3D data shape of the piping system from the simulation results according to an operation input from the user, and outputs the image to the display output unit D105. The visualization program consists of a physical statistics calculation module, a graph output module, a tube axis coordinate calculation module, a three-dimensional data output module, and a piping route information management module.

The physical statistic calculation module extracts the simulation results on the section specified by the piping route information management unit and calculates physical statistic such as turning strength. The graph output module creates and generates graph images from physical statistics and tube axis coordinates. The pipe axis coordinate calculation module calculates the pipe axis coordinates in the section specified by the pipe route information management unit. The three-dimensional data output module generates a three-dimensional shape image of the pipe from the simulation result according to the pipe route information management section. The piping route information management module defines a cross section of piping from the piping route information.

The I/F_D 104 receives data related to user's operation input from the operation input unit, and transmits an image including pipe axis coordinates, a graph of physical statistics, and a 3D data shape of the piping system to the display output unit D 105 .

The display output unit D105 is for outputting to the user an image including pipe axis coordinates, a graph of physical statistics, and a 3D data shape of a piping system, and refers to a display or a printer. The operation input unit D106 converts an operation input from the user into an electric signal and transmits the electric signal to the simulation result visualization device, and corresponds to a keyboard, a touch panel, a mouse, and the like.

FIG. 2 is a functional block diagram showing processing functions of the simulation result visualization system.

In FIG. 2, the simulation result visualization system is composed of a piping system design section B1, a 3D fluid analysis simulation section B2, and a visualization section B3.

The piping system design unit B1 constructs a piping route according to a piping system program and an operation input from a user, and stores it in a recording device as piping route information. The 3D fluid analysis simulation unit B2 executes simulation calculations according to the 3D fluid analysis simulation program and operation input from the user, and saves the simulation results in a recording device. The visualization unit B3 creates an image including a pipe axis coordinate, a graph of physical statistics, and a 3D data shape of the piping system from the simulation results according to the visualization program, and outputs the image to the display output unit. The visualization unit B3 is composed of a pipe route information management unit B31, a physical statistics calculation unit B32, a pipe axis coordinate calculation unit B33, a graph output unit B34, and a three-dimensional data output unit B35.

The piping route information management unit B31 defines a cross section of the piping from the piping route information according to the piping route information management module. The physical statistics calculation unit B32 calculates physical statistics such as turning strength according to the physical statistics calculation module. The pipe axis coordinate calculation section B33 calculates the pipe axis coordinates in the section specified by the pipe route information management section according to the pipe axis coordinate calculation module. The graph output unit B34 creates and generates the graph image G1 from the physical statistics and tube axis coordinates according to the graph output module. The three-dimensional data output unit B35 generates a three-dimensional shape image B35 of piping from the simulation result according to the pipe route information management unit according to the three-dimensional data output module.

FIG. 10 is a diagram explaining the processing flow of the simulation visualization system.

In FIG. 10, the piping system design unit B1 executes the piping system design process F1, creates piping route information, and transmits it to the 3D fluid analysis simulation unit B2 and the visualization unit B3. The 3D fluid analysis simulation unit B2 performs a fluid analysis simulation execution process F2 using the pipe route information, generates a simulation result, and transmits it to the visualization unit B3. On the other hand, when the visualization unit B3 receives the piping route information from the piping system design unit B1, the visualization unit B3 performs the parts information extraction/addition setting process F3 to acquire the type of parts from the piping route information and designate the display color of the parts. Next, the visualization unit B3 defines a pipe cross section from the pipe route information by performing a route cross section definition process F4. When the visualization unit B3 receives the simulation result from the 3D fluid analysis simulation unit B2, the visualization unit B3 executes the physical statistics/pipe axis coordinate calculation process F5 to calculate the pipe axis coordinates from the section information on the piping route information, Extract the above simulation results and calculate the physical statistics. Finally, the visualization unit B3 performs graph/3D data output processing to generate a graph image from the physical statistics and pipe axis coordinates, generate a pipe three-dimensional shape image from the route cross-section information and the simulation results, and generate the graph image and The three-dimensional shape of piping can be displayed on a display or output to a printer.

FIG. 3 is a functional block diagram showing processing functions of the piping system design unit.

In FIG. 3, the piping system design section B31 is composed of a parts creation section B11, a parts storage section B12, a parts selection/connection section B13, a piping configuration storage section B14, a piping route information generation section B15, and a piping route information storage section B16. ing. The component creation unit B11 creates component shapes such as straight pipes, curved pipes, branch components, valves, etc., according to user input. The component storage unit B12 stores the component shape created by the component creation unit B11 as component mesh information in the recording device. The component selection/connection unit B13 selects a plurality of pieces of component mesh information stored in the component storage unit B12 according to an operation input from the user, and connects the component mesh information to generate piping configuration information. is. The piping configuration storage unit B14 stores the piping configuration information generated by the parts selection/connection unit in a storage device. The piping route information generation unit B15 selects one of the plurality of piping configuration information stored in the piping configuration storage unit B14, designates the direction and route of fluid flow in the piping configuration by input from the user, By adding to the piping configuration information, the piping route information is generated. The piping route information storage unit B16 stores the piping route information generated by the piping route information generation unit B15 in the recording device.

11 and 12 are flowcharts showing the details of the piping system design process.

11 and 12, in the piping system design process F1, the parts creation unit B11 first creates parts mesh information by executing the parts creation process, and transmits the parts mesh information to the parts storage unit B12. The component storage unit B12 stores the component mesh information in the recording device by executing the component information storage process, and registers the component mesh ID and component name given to the component mesh information in the component list.

The parts selection/connection unit B13 receives the parts list from the parts storage unit B12 by transmitting the parts list request signal. The parts selection/connection unit B13 executes a parts selection process to select a part from the parts list according to an operation input from the user, and acquires the parts mesh ID of the part. The component selection/connection unit B13 receives the component mesh information from the component storage unit B12 by transmitting the component mesh information request signal together with the component mesh ID to the component storage unit B12. The component selection/connection unit B13 executes component connection processing after acquiring the two component mesh information, thereby rotating or moving each component or connecting the two components in accordance with an operation input from the user. or The component selection/connection unit B13 generates piping configuration information from the result of connecting the components, and transmits the information to the piping configuration storage unit B14. The piping configuration storage unit B14 stores the received piping configuration information in the recording device, and registers the piping configuration ID and the piping configuration name given to the piping configuration information in the piping configuration list.

The piping route information generating unit B15 receives a piping configuration list from the piping configuration storing unit B14 by transmitting a piping configuration list request to the piping configuration storing unit B14. By executing the piping configuration selection process, the piping route information generation unit B15 selects a piping configuration from the piping configuration list and acquires a piping configuration ID. The piping route information generation unit B15 receives piping configuration information from the piping configuration storage unit B14 by transmitting a piping configuration information request including the piping configuration ID to the piping configuration storage unit B14. The piping route information generation unit B15 executes the piping route designation process to specify the direction and route of the fluid flow in the piping configuration according to the operation input from the user, and adds the piping route information to the piping configuration information. Generate. By executing the piping route information saving process, the piping route information storage unit B16 stores the piping route information received from the piping route information generating unit B15 in the recording device, and stores the piping route ID in the piping route information in the piping route list. register.

FIG. 4 is a functional block diagram showing processing functions of a 3D fluid analysis simulation unit.

In FIG. 4, the 3D fluid analysis simulation section B2 is composed of a simulation condition setting section B21, a simulation model selection section B22, a piping route information reading section B23, a simulation calculation section B24, and a simulation result storage section B25.

The simulation condition setting unit B21 sets calculation conditions for simulation calculation, such as initial values of flow velocity and pressure, calculation time intervals, integral calculation method, and the like. In this embodiment, all setting items are put together in one simulation condition file, and a method of selecting from a plurality of simulation condition files is adopted. A system in which each setting item is set independently may be used. The simulation model selection unit B22 prepares a plurality of fluid physical models necessary for simulation calculation, and selects from among them. The piping route information reading unit 1_B23 reads the data of the piping route information created by the piping system design unit B1 from the recording device.

The simulation calculation unit B24 reads the pipe route information according to the simulation conditions set by the simulation condition setting unit B21, the simulation model selected by the simulation model selection unit B22, and the pipe route information read by the pipe route information reading unit 1_B23. Executes the simulation calculation of the fluid analysis in the piping system shown in and generates the simulation results. The simulation result storage unit B25 stores the simulation results generated by the simulation calculation unit B24 in a recording device.

FIG. 13 is a flow chart showing the processing contents of the fluid analysis simulation execution processing.

In FIG. 13, in the fluid analysis simulation execution process F2, the piping route information reading unit 1_B23 executes the piping route information reading process to read data of the piping route information from the recording device and transmit it to the simulation execution unit B24. The simulation condition setting unit B21 executes the condition setting process independently of the piping route information reading process to set the simulation conditions and transmit them to the simulation execution part B24. The model selection unit B22 selects a simulation model and transmits it to the simulation execution unit B24 by executing the model selection process independently of the piping route information reading process and the condition setting process. The simulation calculation unit B24 receives the simulation model, the simulation conditions, and the piping route information, and performs a simulation calculation execution process after all are completed, thereby generating a simulation result and transmitting it to the simulation result storage unit B25. The simulation result storage unit B25 receives the simulation results and stores them in the recording device by performing ten simulation result storage processes.

FIG. 5 is a functional block diagram showing processing functions of a piping route information management unit.

In FIG. 5, the piping route information management unit B31 includes a piping route information reading unit 2_B311, a route parts information extraction/addition setting unit B312, a route parts information storage unit B313, a route cross section definition unit B314, and each component inner cross section on the route. It is composed of an information storage unit B and 315 . The piping route information reading unit 2_B311 reads the data of the piping route information created by the piping system design unit B1 from the recording device.

The in-path component information extraction/addition setting unit B312 extracts component information including the type of component from the piping route information and sets the component color according to the operation input from the user. The in-path parts information extraction/addition setting unit B312 is composed of a parts information extraction unit B3121, a parts type extraction unit B3122, and a parts color setting unit B3123. The parts information extraction part B3121 extracts information about parts from the piping route information. The component type extraction unit B3122 extracts information on the type of component, such as a straight pipe or curved pipe, from the component information. The part color setting section B3123 manually or automatically sets the color of the part in the information on the part. The in-path parts information storage unit B313 constructs in-path parts information from information on parts, types of parts, and colors of parts, and stores the information in a recording device. The route cross section definition unit B314 defines the position of the pipe cross section to be calculated for physical statistics in the pipe designated by the in-route part information generated by the in-route part information extraction/addition setting unit B312. The cross-sectional information in each component on the route is configured by adding to the product information. The on-route cross-section information storage unit B315 stores the on-route component information configured by the route cross-section definition unit B314 in a recording device.

FIG. 14 is a flow chart showing the contents of the part information extraction/addition setting process.

In FIG. 14, in the parts information extraction/addition setting process F3, the piping route information reading unit 2_B311 first executes the piping route information reading process, thereby reading the piping route information from the recording device and transmitting it to the parts information extraction unit B3121. The parts information extraction unit B3121 receives the piping route information and executes the parts information extraction process, thereby extracting information on individual parts in the route on the pipe from the piping route information, and performing part color setting with the parts type extraction unit B3122. Transmits the in-route part individual information to the section B3123. The component type extraction unit B3122 extracts the component type from the in-route component single information, and the component color setting unit B3123 sets the display color of the component for the in-route component single information. As for the display colors of the parts, the colors of adjacent parts must be different from each other. For example, there is a method in which the hues of adjacent parts are always separated by 90 degrees or more. Specifically, when the piping route is composed of parts within 256 points other than branches, the color of the part number i is set to (R(i), G(i), B(i)), and R(i ) is represented by the following (formula 1) to (formula 4), G (i) is represented by the following (formula 5) to (formula 8), and B (i) is represented by the following (formula 9) to (formula 12). can be done.

Further, the floor function floor (x, y), which constitutes each of the above equations, is expressed by the following (Equation 13), the ceiling function ceil (x, y) is expressed by the following (Equation 14), and the remainder function mod (x, y) is expressed by In the following (Equation 15), the function fz(x) is the following (Equation 16), the part color step width m is the following (Equation 17), and the maximum number of the part colors is the following (Equation 18). can be represented respectively.

After that, the in-route part information storage unit B313 receives the part information/part type and part color from the part type extraction unit B3122 and the part color setting unit B3123, respectively, and uses the part information/part type and part color to obtain the in-route part information. Construct and save to a recording device.

FIG. 15 is a flow chart showing the processing contents of the section definition processing.

In FIG. 15, in the cross-section definition process F3, the intra-route component information extraction/addition setting unit B312 transmits the intra-route component information to the route cross-section definition unit B315. The path cross-section defining part B315 extracts information about the length of each part in the pipe axis direction. Next, the route cross-section definition unit B315 sets whether the cross-section of the route of the part is divided equally or arbitrarily according to the operation input from the user. In the case of equal division, the number of divisions is set by an operation input from the user, and the cross-sectional distance is calculated by dividing the length of the part in the direction of the tube axis by (the number of divisions + 1). On the other hand, in any case, the user designates the cross-sectional distance within the range of the length of the part in the pipe axis direction by operation input. Repeat this for all parts. Then, the route cross-section definition unit B315 embeds the cross-section distance in the intra-route component information, and forms the intra-route cross-section information for each component on the route. The on-route cross-section information storage unit B316 receives the on-route cross-section information on each component from the route cross-section definition unit B315 and stores it in the recording device.

FIG. 6 is a functional block diagram showing the processing functions of the tube axis coordinate calculator.

In FIG. 6, the pipe axis coordinate calculation section B33 is composed of a path section information reading section 1_B331, a section pipe axis coordinate calculation section B332, and a route section section information storage section B333 with pipe axis coordinates. ing. The on-path cross-sectional information reading unit 1_B331 reads the on-path cross-sectional information on each part stored in the recording device. Each section pipe axis coordinate calculation unit B332 calculates the pipe axis coordinates, the center coordinates and the normal vector in each section using the section information within each component on the route. The section information storage unit B333 for each part on the route with the pipe axis coordinates adds the pipe axis coordinates, the center coordinates of the section, and the normal vector to the section information on the part on the route, and stores the section information on the part with the pipe axis coordinates. and stored in a recording device.

FIG. 16 is a flow chart showing the contents of the tube coordinate calculation process in the physical statistics/tube coordinate calculation process.

In FIG. 16, in the tube axis coordinate calculation process of the physical statistics/tube axis coordinate calculation process F5, the on-path cross-section information reading unit 1_B331 reads the on-path cross-section information on each part saved in the recording device. It is transmitted to each section pipe axis coordinate calculation section B332. Each section tube axis coordinate calculator B332 first resets the tube axis coordinates to zero. Next, the start point coordinates and end point coordinates are extracted for each component, and the tube axis coordinates LS(j) of the start point are calculated using the following (Equation 19).

Here, LP(j) is the length in the direction of the tube axis of the part with the part number j.

After that, the tube axis coordinate Lz(i,j) of the section number i of the part number j is calculated by the following (Equation 20) by accumulating the tube axis direction length for each section.

Here, L(i, j) indicates the length in the tube axial direction from section number i of part number j to section number i+1.

Next, section center coordinates (xO (i, j), yO (i, j), zO (i, j)) and normal vector ez (j) = (ezx (j), ezy(j) and ezz(j)) are calculated and obtained. For example, if the part is a straight pipe and the cross section is created by equally dividing the part with the division number imax, the center coordinates of the cross section and the normal vector are calculated by the following (Equation 21) and the following (Equation 22), respectively. be able to.

Here, (xs(j), ys(j), zs(j)) are the center coordinates of the part start point, and (xe(j), ye(j), ze(j)) are the center coordinates of the part end point. , respectively. Each cross section pipe axis coordinate calculation unit B332 executes the above processing for all cross sections in all parts, and converts the pipe axis coordinates, cross section center coordinates, and normal vector to each part cross section information storage unit on the route with pipe axis coordinates. Send to B333. The on-route cross-section information storage unit B333 for each part on the route receives the on-route cross-section information on each part, the pipe axis coordinates, the cross-section center coordinates, and the normal vector, and stores the on-route cross-section information on each part with the pipe axis coordinates. , the cross-section center coordinates and the normal vector are added, and saved in the recording device as cross-section information inside each part on the route with pipe axis coordinates.

FIG. 7 is a functional block diagram showing processing functions of a physical statistic calculator.

In FIG. 7, the physical statistics calculation unit B32 includes a simulation result reading unit 1_B321, a section information reading unit 2_B322 in each part on the path, a simulation result section extraction unit B323, a cell unit physical statistics calculation unit B324, and a cell unit physical statistics calculation unit B324. It is composed of a calculation unit B325, a cross-section unit physical statistics integration calculation unit B326, a physical statistics time average/standard deviation calculation unit B326, and a cross-section unit physical statistics storage unit B327.

The simulation result reading unit 1_B321 reads the simulation result calculated by the simulation calculation executing unit B2 from the storage device. The on-route cross-section information reading unit 2_B322 reads the on-route cross-section information on each component generated by the piping route information management unit B31 from the storage device. The simulation result cross-section extraction unit B323 extracts the simulation result at the cross-section position defined by the cross-section information in each component on the route from the simulation results.

The cell-based physical statistics calculator B324 calculates physical statistics for each cell from the simulation results on the cross section. Here, the cells are (r, θ), (r + dr, θ), (r, θ + d θ) in the polar coordinate system with the central coordinate of the cross section as the origin on the cross-sectional plane of the tube axis coordinate z and the elapsed time t in the simulation. ), (r+dr, θ+dθ). Note that (r, θ) indicates radial coordinates and rotational coordinates in the polar coordinate system. The cell unit physical statistics calculator B324 is composed of an angular momentum calculator, a momentum calculator, and other calculators. The angular momentum calculator calculates the angular momentum of the fluid in cell units using the following (Equation 23). The momentum calculation unit calculates the momentum of the fluid in units of cells using the following (Equation 24).

Here, ρ is the density of the fluid, Ur(r, θ, z, t) is the flow velocity in the r-axis direction, and Uθ(r, θ, z, t) is the flow velocity in the θ-axis direction. The other calculator calculates parameters necessary to calculate other physical statistics.

The section-unit physical statistics integral calculation unit B325 integrates the cell-unit physical statistics to calculate the section-unit physical statistics. The cross-sectional unit physical statistics integral calculation unit B325 is composed of each temporal turning strength calculation unit and other calculation units. Each time swirl strength calculator calculates the swirl strength m(z, t) at the tube axis coordinate z and the simulation elapsed time t by integrating the angular momentum and the momentum of the fluid in each cell according to the following (Equation 25). .

Here, Rmax indicates the radius of the pipe. Other calculation units similarly calculate other physical statistics by integrating various parameters in units of cells.

The physical statistic time average/standard deviation calculator B226 calculates the time average and standard deviation of the physical statistic obtained in units of time. The physical statistics time average/standard deviation calculator B226 is composed of a turning strength time average calculator, a swing strength standard deviation calculator, and other calculators. The turning strength time average calculator calculates the mean value mmean(z) of the turning strength at the tube axis coordinate z from the turning strength at each time using the following (Equation 26). Further, the turning strength standard deviation calculator calculates the turning strength standard deviation dm(z) from the turning strength at each time and its average value using the following (Equation 27).

Here, Ts indicates the time average calculation start time on the simulation, and T indicates the elapsed time on the simulation. The other calculation unit calculates the time average and standard deviation of the physical statistics determined in units of time in the same manner as the turning strength.

The per-section physical statistics storage unit B327 stores the calculated per-section physical statistics in the recording device. The cross-section unit physical statistics storage B327 has a turning strength storage and other storage. The turning strength storage unit stores the time average and standard deviation of turning strength in each cross section in a recording device. The other storage unit stores time averages and standard deviations of other physical statistics in each cross section in the recording device.

FIG. 17 is a flow chart showing the contents of the physical statistics calculation process in the physical statistics/tube coordinate calculation process.

In FIG. 17, in the physical statistics calculation process of the physical statistics/tube axis coordinate calculation process F5, the simulation result reading unit 1_B321 reads the simulation result from the recording device and transmits it to the simulation result cross section extraction unit B323. On the other hand, at the same time, the on-path cross-section information reading unit B322 reads the on-path cross-section information on each component from the recording device, and transmits the information to the simulation result cross-section extraction unit B323. The simulation result cross-section extraction unit B323 reads the simulation result and the cross-section information of each part on the route, and extracts the cross-section on the pipe of the simulation result according to the pipe axis coordinates, the normal vector, and the center coordinates of the cross section indicated by the cross-section information of each part on the route. and extracts the simulation result on the cross section, and transmits it to the cell unit physical statistics calculation unit B324 as the cross section unit simulation result.

The cell-based physical statistics calculation unit B324 calculates physical statistics for each cell from the simulation results on the cross section, and transmits the calculated physical statistics to the cross-section unit physical statistics integral calculation unit B325. The cross-sectional physical statistic integral calculation unit B325 integrates the physical statistic for each cell to calculate the physical statistic for each cross-section at each time, and transmits the calculated physical statistic to the physical statistic time average/standard deviation calculation unit B226. The physical statistic time average/standard deviation calculator B226 calculates the time average and standard deviation of the physical statistic obtained in units of time for each tube axis coordinate, and transmits them to the cross-section unit physical statistic storage unit B327. The per-section physical statistics storage unit B327 stores the calculated per-section physical statistics in the recording device.

FIG. 8 is a functional block diagram showing processing functions of a graph output unit.

In FIG. 8, the graph output unit B34 includes a section information reading unit 1_B341 for each part on the route with pipe axis coordinates, a section unit physical statistics reading unit B342, and a section physical statistics for each part and pipe axis coordinates (horizontal axis and vertical axis). ) It is composed of an extraction unit B343, a graph drawing unit B344, a graph setting unit B345, and a graph display output unit B346. The section information reading unit 1_B341 for each part along the route with pipe axis coordinates reads the section information inside each part along the route with pipe axis coordinates stored in the recording device. The cross-section physical statistics reading unit B342 reads the cross-section physical statistics stored in the recording device. Each component cross-sectional physical statistics/pipe axis coordinates (horizontal axis and vertical axis) extraction unit B343 extracts pipe axis coordinates corresponding to each cross section from each part internal cross-sectional information and cross-section unit physical statistics on each path with tube axis coordinates. And the time average and standard deviation of the part number and physical statistics are extracted and linked by the identifier of the cross section. In addition, the part number, part type name, and part color are extracted from the cross-sectional information of each part on the path with the tube axis coordinates.

The graph drawing unit B344 draws on the RAM a graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the parameter related to the physical statistic. The graph drawing section B344 is composed of a physical statistics time average drawing section and a physical statistics time average±standard deviation drawing section. The physical statistics time average drawing unit draws a graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the time average of the physical statistics. The physical statistics time average±standard deviation drawing unit draws a graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the value obtained by subtracting the standard deviation from the physical statistics time average and the sum of the values.

The graph setting unit B345 sets colors and adds part type names to the graph according to the part number, part type name, and part color extracted from each part internal cross-sectional information on each tube axis coordinate path. The graph setting section B345 is composed of a component type display section and a component color setting section. The part type display section writes the name of the part in the area indicated by each part in the graph image data drawn on the RAM. The part color setting unit paints the graph part of the area indicated by each part in the image data of the graph drawn on the RAM with a specified color. The graph display output unit B346 displays the image data of the graph drawn on the RAM on a display or prints it on paper with a printer.

FIG. 18 is a flowchart showing the contents of the graph output process in the graph/3D data output process.

In FIG. 18, in the graph output process of the graph/3D data output process F6, the internal section information reading unit 1_B341 for each part along the route with pipe axis coordinates reads the section inside each part along the route with pipe axis coordinates saved in the recording device. The information is read and transmitted to the cross-sectional physical statistics of each component/pipe axis coordinates (horizontal axis and vertical axis) extraction unit B343. At the same time, the cross-section physical statistics reading unit B342 reads the cross-section physical statistics stored in the recording device and sends them to the cross-section physical statistics/pipe axis coordinates (horizontal axis vertical axis) extraction unit B343. Send. Each component cross-sectional physical statistics/pipe axis coordinates (horizontal axis and vertical axis) extraction unit B343 receives each part internal cross-sectional information and cross-section unit physical statistics on each path with pipe axis coordinates, Extract time mean and standard deviation of axial coordinates and part numbers and physical statistics and associate them with cross-section identifiers. In addition, the part number, part type name, and part color are extracted from the cross-sectional information of each part on the path with the tube axis coordinates.

Then, the physical statistics, tube axis coordinates, part number, part type name and part color are sent to the graph drawing section B344. The graph drawing unit B344 receives the physical statistics, the tube axis coordinates, the part number, the part type name, and the part color. A graph obtained by adding the standard deviation to the average and time average is drawn on the RAM, and the graph image, part number, part type name, and part color are sent to the graph setting unit. The graph setting section B345 sets the color of the received graph image according to the received part number, part type name, and part color, adds the part type name, and transmits the decorated graph image to the graph display output section B346. The graph display output unit B346 receives the decorated graph image, and displays the image data of the graph drawn on the RAM on a display or prints it on paper with a printer.

FIG. 9 is a functional block diagram showing processing functions of a 3D data output unit.

In FIG. 9, the 3D data output unit B35 includes a section information reading unit 2_B351 inside each part along the path with the axis coordinates, a simulation result reading unit 2_B352, a mesh extraction unit B353 for each part, a 3D data drawing unit B354, and a drawing setting unit B355. 3D data display output unit B356. The section information reading unit 2_B351 for each part along the route with pipe axis coordinates reads the section information inside each part along the route with pipe axis coordinates stored in the recording device. The simulation result reading unit 2_B352 reads the simulation results stored in the recording device. Each part mesh extraction unit B353 extracts the number, part color, and mesh data of each part from the cross-section information inside each part on the route with pipe axis coordinates and the simulation result.

The 3D data drawing unit B354 draws on the RAM a three-dimensional shape image of the pipe to be simulated and the mesh of the parts therein. The 3D data drawing section B354 is composed of a 3D data outer frame drawing section and each component mesh drawing section. The 3D data outer frame drawing unit draws, on the RAM, a three-dimensional shape image of the mesh data that becomes the outer frame of the pipe from the mesh data in the simulation result. Each part mesh drawing unit draws a three-dimensional shape image of mesh data of each part on the RAM.

The drawing setting unit B355 sets the color of the graph according to the part color associated with the part number, sets the drawing angle, and redraws the graph. The drawing setting section B355 is composed of a component color setting section and a drawing angle setting section. The part color setting unit paints the mesh of each part in a specified color in the image of the three-dimensional shape of the pipes and parts drawn on the RAM. The drawing angle setting unit redraws the pipes and parts drawn on the RAM by changing the viewing angle in the three-dimensional shape image. The 3D data display output unit B356 displays the three-dimensional shape image data of the pipes and parts drawn on the RAM on a display or prints them on paper with a printer.

FIG. 19 is a flowchart showing the contents of the 3D data output process in the graph/3D data output process.

In FIG. 19, in the 3D data output process of the graph/3D data output process F6, the cross-sectional information reading unit 2_B351 of each part on the path with tube axis coordinates reads the inside of each part on the path with tube axis coordinates stored in the recording device. Cross-sectional information is read and transmitted to each component mesh extraction unit B353. At the same time, the simulation result reading unit 2_B352 reads the simulation results stored in the recording device and transmits them to each part mesh extraction unit B353. Each component mesh extraction unit B353 receives the cross-sectional information of each component on the route with pipe axis coordinates and the simulation result, and extracts the mesh data of each component within the pipe. In addition, the part number, part type name, and part color are extracted from the cross-sectional information of each part on the path with the tube axis coordinates. Then, the simulation results, part numbers, colors and meshes are sent to the 3D data drawing section B354.

The 3D data drawing unit B354 receives the simulation results, part numbers, colors, and meshes, draws 3D data representing the three-dimensional shape of the pipes and parts on the RAM, and renders the 3D data image, part number, part type name, and part name. Send the color to the graph setting part. The drawing setting unit B355 sets the color of the received 3D data image according to the received part number, part type name, and part color, sets the drawing angle and redraws, and outputs the decorated 3D data to the 3D data display output unit B356. Send images. The 3D data display output unit B356 receives the decorated 3D data image, and displays the image data of the 3D data drawn on the RAM on a display or prints it on paper with a printer.

FIG. 20 is a diagram showing the data structure of various data in the recording device in the simulation result visualization device.

In FIG. 20, various data D1 include piping system design program data D11, a plurality of piping route information D12, the number of piping route information, a piping route list D13, 3D fluid analysis simulation program data D14, the number of simulation calculation time samples, and a plurality of simulation result D15, visualization program data D16, and other variables.

The piping system design program data D11 is a collection of constants and variables used by the piping system design unit B1 to execute processing according to the piping system design program. The piping system design program data consists of a plurality of pieces of mesh part information D111, the number of parts mesh information, a parts list D112, a plurality of pieces of piping configuration information D113, the number of pieces of piping configuration information, a piping configuration list D114, and other temporary variables and constants. ing.

The part mesh information D111 is a collection of information such as points and cells that constitute each part in the piping system. The parts list D112 is a list in which a plurality of pieces of designed part mesh information D111 are registered, and is necessary to list and allow the user to select which part to connect with which part when connecting the parts. . The piping configuration information D113 is information describing a plurality of pieces of part mesh information D111 constituting piping and the connection status between the part meshes. The piping configuration list D114 is a list in which a plurality of pieces of the designed piping configuration information D113 are registered, and is necessary for displaying the list to the user to select which piping configuration information D113 to set when setting the piping route. be.

The piping route information D12 is information indicating which route and in which direction the fluid flows in the piping indicated by the piping configuration information D113 and the piping configuration information D113. The piping route list D13 is a list in which a plurality of pieces of designed piping route information D12 are registered, and it is necessary to list and allow the user to select which piping route information D12 is to be used when executing a simulation. .

The 3D fluid analysis simulation program data D14 is a set of constants and variables used by the 3D fluid analysis simulation section B2 to execute processing according to the 3D fluid analysis simulation program. The 3D fluid analysis simulation program data D14 consists of a simulation condition/model list D141, the number of simulation result time samples, and other temporary variables. The simulation condition/model list D141 is a list containing a plurality of simulation conditions and simulation formula models used when performing simulation calculations, and which simulation conditions and simulation models are to be used is displayed in a list for the user to select. necessary to let

The number of simulation calculation time samples is data indicating how much the increment width of the elapsed time in the simulation is to be set when the simulation is executed. The simulation result D15 indicates the value of the physical quantity at each position as a result of simulation calculation using the simulation conditions, the model, and the number of calculation time samples in the piping route information D12.

The visualization program data D16 is a collection of constants and variables used by the visualization unit B3 to execute processing according to the visualization program. The visualization program data D16 includes cross-sectional information D161 in each part on the route, cross-sectional unit simulation results D162, cross-sectional physical statistics information D163, graph images, piping 3D data images, and other temporary variables.

The section information D161 in each component on the route is a collection of information on each component on the piping route, pipe axis coordinates, section center coordinates, normal vectors, and the like of each section in the component. The cross-section unit simulation result D162 is obtained by extracting the simulation result for each cross-section on the piping route. The cross-sectional physical statistics information D163 is physical statistics in each cross section on the pipe route. The graph image is a graph image in which the horizontal axis is the tube axis coordinate and the vertical axis is the physical statistic. The piping 3D data image is an image in which the three-dimensional shapes of the piping and parts inside the piping are drawn.

FIG. 21 is a diagram showing the data structure of the parts mesh information, the parts list, and the piping configuration list.

In FIG. 21, the part mesh information D111 is composed of a part mesh ID, part information D1111, a plurality of point information, the number of in-mesh points, a plurality of cell information, and the number of in-mesh cells. A part mesh ID is an identifier of a part mesh. The part information D1111 is information indicating an outline of the part, such as the type and name of the part, the start point and the end point. The point information indicates information about the points that make up the mesh. The point information consists of a point ID, the point's X coordinate, Y coordinate, Z coordinate, and local point ID.

A point ID indicates the ID of a plurality of points in the part mesh information. The local point ID indicates the ID of a point in the piping route that is the object of the simulation calculation. If the piping route is not set, a value indicating unset is entered. The number of in-mesh points indicates the number of point information in the part mesh information. The cell information indicates which of the pieces of point information is used to construct a cell that is the minimum unit of the three-dimensional shape. The cell information consists of a cell ID, a plurality of point IDs, the number of cell constituent points, and a local cell ID.

A cell ID indicates an identifier of a plurality of cell information in the component mesh information. A plurality of point IDs describe point IDs indicating specific point information. The number of points constituting a cell indicates the number of pieces of point information constituting a cell. The local cell ID indicates the ID of a cell in the piping route that is the object of simulation calculation, and if the piping route is not set, a value indicating unset is entered. The number of in-mesh cells indicates the number of pieces of cell information in the component mesh information.

The parts list D112 is composed of a plurality of parts list elements and the number of parts list elements. A parts list element shows an overview of parts that can be selected to create a piping configuration, and is composed of a part mesh ID, a part type, and a part name. The part type indicates a large classification of the part such as a straight pipe, a curved pipe, and a branch, and the part name indicates a small classification of the part such as the model number and specifications of the part. The piping configuration list D114 is composed of a plurality of piping list components and the number of piping list configurations. A piping configuration list element shows an outline of a piping configuration that can be selected as a target for setting a piping route, and is composed of a piping configuration ID, which is an identifier of a piping configuration, and a piping configuration name.

FIG. 22 is a diagram showing the data configuration of component information.

22, the component information D1111 includes component type, component name, multiple start point information, number of start points, multiple end point information, number of end points, multiple waypoint information, number of waypoints, representative point information, and multiple route element information. It consists of the total number of path elements, part path information, and the number of part paths.

The starting point information indicates the center coordinates of the cross section at the most upstream part. However, the definitions of upstream and downstream are provisional for convenience, and the directions of upstream and downstream may be reversed as soon as the piping route is set. The start point information consists of a start end point ID and the X, Y and Z coordinates of the start point. The start/end point ID indicates identifiers of a plurality of start points, end points, and waypoints. The reason why there are multiple starting points is to correspond to a branched component having two upstreams. The end point information indicates the center coordinates of the cross section at the most downstream of the part, and is composed of the start/end point ID and the X, Y, and Z coordinates of the end point.

The waypoint information indicates the waypoint of the part flow, and is composed of the start/end point ID and the X, Y, and Z coordinates of the end point. The representative point information indicates a representative point of the component, and is composed of the X coordinate, Y coordinate, and Z coordinate of the representative point. In the case of a straight pipe, the representative point is often defined as the middle point between the start point and the end point, and is basically a transit point, but like a curved pipe, the representative point exists on the outer frame of the part. Sometimes.

The path element information is information in which the path of the fluid passing through the part is separated for each element. The route element information consists of a route element ID, a plurality of starting and ending point IDs, the number of starting and ending points, the length in the tube axial direction, the outer diameter and the inner diameter. A route element ID indicates an identifier in a plurality of route element information. The tube axial length indicates the length of the path element in the tube axial direction. ID and OD refer to the outer and inner diameters of the components on the path. A route element consists of multiple start points, end points, and waypoints. In the case of a straight pipe, there is only one combination of a start point and an end point, and in the case of a curved pipe, there is only one combination of a start point, an end point, and a plurality of waypoints. In the case of a branch, there are a plurality of route elements such as start point 1 and way point 1, start point 2 and way point 1, way point 1 and way point 2, way point 2 and end point 1, and way point 2 and end point 2.

Part element information is information indicating the entire path of fluid passing from a specific start point to a specific end point within a part. The part path information is composed of a part path ID, a pipe axis direction length, a path element ID, and the number of path elements in the path. A part path ID indicates an identifier of a plurality of part paths. The tube axial length indicates the length of the path from a specific start point to a specific end point of the part. A path element ID indicates an ID of a path element that constitutes the entire path. For example, in the case of the above-mentioned branch, the component route information is composed of route elements such as the start point 1 and the route point 1, the route point 1 and the route point 2, and the route point 2 and the end point 1. , through point 2 through end point 1, to form a part path. Since there are two start points and two end points, 2×2=4 pieces of component path information are formed.

FIG. 23 is a diagram showing the data configuration of piping configuration information.

23, the piping configuration information D113 is composed of a piping configuration ID, a piping configuration name, a plurality of parts mesh local information, a number of parts mesh local information, a plurality of parts connection information, and a number of parts connection. A piping configuration ID indicates an identifier of a plurality of pieces of piping configuration information. The piping configuration name indicates the character string of the name given to the piping configuration by the user. The parts mesh local information is the parts mesh information D111 to which information for positioning within the piping configuration is added.

The part mesh local information is composed of part mesh information D111, part mesh local ID, part color, representative point offset and normal vector. The parts mesh local ID is an identifier of the parts mesh local information in the piping configuration information. The component color indicates the display color of the component. The representative point offset indicates where the representative point of the part mesh is displayed in the piping configuration, and is composed of X, Y and Z coordinates. The normal vector indicates the angle of the component mesh, and consists of an X-direction component, a Y-direction component, and a Z-direction component.

The component connection information indicates the connection relationship between component meshes. The component connection information includes a component connection information ID, a connection source component mesh local ID, a connection destination component mesh local ID, a connection source component mesh component path ID, a connection destination component mesh component path ID, and connection surface center coordinates. The component connection information ID is an identifier for a plurality of component connection information in the piping configuration information. The connection source part mesh local ID and the connection destination part mesh local ID indicate the local IDs of the connection source and connection destination part meshes. The connection source component mesh component route ID and the connection destination component mesh component route ID indicate the component route IDs of the connection source and connection destination. can do The connection surface center coordinates indicate the center coordinates on the connection surfaces of the parts, and are composed of an X coordinate, a Y coordinate, and a Z coordinate.

FIG. 24 is a diagram showing the data structure of piping route information and a piping route list.

In FIG. 24, the piping route information D12 is composed of a piping route ID, a piping route name, piping configuration information, a plurality of piping route single route information, and the number of piping route single routes. The piping route ID indicates identifiers of a plurality of pieces of piping route information. The piping route name indicates a character string of the name given to the piping route by the user. The piping configuration information D113 indicates the piping configuration for which the route is to be specified. The piping route single-path information designates a piping route, and is composed of a piping route single-path ID, a plurality of component connection direction information, and the number of component connection direction information. The piping route single-path ID is an identifier for a plurality of piping route single-path information. The component connection direction information designates a flow direction for specific component connection information, and is composed of a component connection information ID and a flow direction. The flow direction is numerically identified as information indicating whether the flow is from the tentative upstream to the tentative downstream or vice versa.

The piping route list D13 is composed of a plurality of piping route list elements and the number of piping route list elements. The piping route list element is a string associated with a piping route ID and a piping route name for displaying a list and allowing selection.

FIG. 25 is a diagram showing the data configuration of a simulation condition/model list.

In FIG. 25, the simulation condition/model list D141 is composed of a plurality of simulation conditions, a number of simulation conditions, a plurality of simulation models, a number of simulation models, a plurality of simulation condition constant information, and a plurality of simulation model constant information.

A simulation condition is an aggregate of a plurality of simulation condition constants, and is composed of a simulation condition ID, a simulation condition name, and a plurality of simulation condition constants. A simulation condition ID is an identifier for a plurality of simulation conditions. The simulation condition name is a character string describing the name of the simulation condition. A simulation condition constant is one of a group of physical constants representing simulation conditions, and is composed of an ID and a constant. ID is an identifier for a plurality of simulation condition constants, and value indicates the value of the physical constant indicated by the identifier. For example, if the ID indicates the initial value of the pipe internal pressure, the value contains a specific numerical value indicating the initial value of the pipe internal pressure.

A simulation model is an aggregate of a plurality of simulation model constants, and is composed of a simulation model ID, a simulation model name, and a plurality of simulation model constants. A simulation model ID is an identifier for a plurality of simulation models. The simulation model name is a character string describing the name of the simulation model. A simulation model constant is one of a group of coefficients of formulas representing a simulation model, and is composed of an ID and a constant. The ID is an identifier for a plurality of simulation model constants, and the value indicates the coefficient value of the formula indicated by the identifier. For example, if the ID indicates the influence coefficient of the pressure at the current time with respect to the pressure at the next time, the value contains a specific numerical value indicating the influence coefficient.

The simulation condition constant information indicates which ID contains which physical constant in the simulation condition constant, and is composed of an ID, a name, and a constant name. The ID is an identifier of a plurality of simulation condition constants, and the name is the name of the simulation condition constant. A constant name is a constant name of a simulation condition constant in the simulation calculation program. For example, if the ID indicates the initial value of the pipe pressure, the name contains the character string "pipe pressure initial value", and the variable name contains the constant name of the initial pipe pressure value used in the simulation calculation program. .

The simulation model constant information indicates which ID contains which formula coefficient in the simulation model constant, and consists of an ID, a name, and a constant name. The ID is an identifier of a plurality of simulation model constants, and the name is the name of the simulation model constant. A constant name is a constant name of a simulation model constant in a simulation calculation program. For example, if the ID indicates the influence coefficient of the pressure at the current time on the pressure at the next time, the name contains "the influence coefficient of the pressure at the current time on the next time", and the variable name is used in the simulation calculation program. Contains the name of the constant for the influence factor.

FIG. 26 is a diagram showing the data configuration of simulation results.

In FIG. 26, the simulation result D15 is composed of a result ID, a model ID, a condition ID, piping route information D12, a plurality of point unit physical quantities, the total number of mesh points, a plurality of cell unit physical quantities, the total number of mesh cells, and time. there is The result ID is an identifier for a plurality of simulation results D15. The model ID is the simulation model ID, and the condition ID is the simulation condition ID. The piping route information D12 refers to the piping route information D12 that is the target of simulation calculation. Time is the elapsed time in the simulation results.

The point-unit physical quantity represents the value of the physical quantity at the coordinates of the points forming the mesh on the pipe. A point unit physical quantity is composed of a local point ID, a plurality of physical quantities, and the number of physical quantity types. The local point ID is an ID for linking which point information among the point information in the part mesh information D111 in the piping configuration information D113 in the piping route information D12 corresponds to the point unit physical quantity. The physical quantity indicates the physical quantity at the coordinates indicated by the point information associated with the local point ID, and is composed of the number of dimensions and a plurality of physical quantity elements. For example, in the case of a physical quantity that indicates a scalar quantity of pipe pressure, the number of dimensions is 1, and the value of the scalar quantity of pipe pressure is entered in the physical quantity element. On the other hand, if the physical quantity represents a three-dimensional vector value of the flow velocity, the number of dimensions is 3, and the three physical quantity elements contain the X-axis component, Y-axis component, and Z-axis component of the flow velocity, respectively.

The cell unit physical quantity represents the value of the physical quantity at the central coordinates of the cells that form the mesh on the pipe. A cell unit physical quantity is composed of a local cell ID, a plurality of physical quantities, and the number of physical quantity types. The local cell ID is an ID for linking which cell information among the cell information in the pipe configuration information D113 in the pipe route information D12 and the part mesh information D111 in the pipe route information D12 corresponds to the point unit physical quantity. The physical quantity indicates the physical quantity at the representative coordinates of the cell indicated by the cell information associated with the local cell ID, and is composed of the number of dimensions and a plurality of physical quantity elements.

FIG. 27 is a diagram showing the data configuration of cross-sectional information on each component on the route.

In FIG. 27, the on-route part internal cross-sectional information D161 is composed of a piping route ID, a plurality of individual route part information, and the number of parts on the route. The piping route ID is an identifier associated with the piping route ID described in the piping route information D12.

The in-path single component information is information on a single component in the path, which is necessary to draw a graph of pipe axis coordinates and physical statistics on the path. Information on individual parts in a route includes part mesh local ID, front part mesh local ID, rear part mesh local ID, part type, part color, tube axis direction length, start point tube axis coordinate, number of passing paths, and number of passing paths It consists of route information, the number of sections, and section information for the number of sections. The part mesh local ID is a part mesh local ID linked to the part mesh information D111 in the piping configuration information D113 in the piping route information D12. The front part mesh local ID is the local ID of the part mesh directly connected to the upstream side of the corresponding part mesh. The subsequent part mesh local ID is the local ID of the part mesh directly connected to the downstream side of the corresponding part mesh.

The component type is information about the type of component mesh, and indicates straight pipes, curved pipes, branches, and the like. A component color is a color assigned to a component, and is used to identify the component in graphs and 3D data. The length in the tube axis direction is the value of the length of the part in the tube axis direction. The starting point tube axis coordinate is the value of the tube axis coordinate of the most upstream section of the component along the entire route. The passage route information is information indicating which pipe route single route the part passes through, and is composed of a pipe route single route ID and a flow direction number. The piping route single-path ID is an identifier that indicates which piping route single-path information is among the piping route single-path information in the piping route information D12. The flow direction number indicates in which direction the single piping route is directed in the piping route.

Section information is information indicating the attributes of each section within a part. The cross-section information consists of a cross-section ID, a cross-section distance, a pipe axis coordinate, a cross-section center coordinate, and a normal vector. The cross-section ID is an identifier of multiple cross-section information. The cross-sectional distance indicates the distance in the tube axial direction from the previous cross section. The pipe axis coordinates indicate the coordinates in the direction of the pipe axis in the entire piping route. This item contains a value indicating an exception, for example, a physically impossible value of -1E+10. The cross-section center coordinates indicate the center coordinates of a circle when the cross-section is a circle, and are composed of an X coordinate, a Y coordinate, and a Z coordinate. The normal vector indicates in which direction the cross section is directed in the coordinate system of the entire piping route, and is composed of an X-direction component, a Y-direction component, and a Z-direction component. The in-path part information shown in FIG. 5 is obtained by removing the section information from the in-path part single information, and 0 (zero) is entered in the value of the number of sections.

FIG. 28 is a diagram showing the data configuration of the cross-section unit simulation result.

In FIG. 28 , the cross-section unit simulation result D162 includes a result ID, a model ID, a condition ID, time, a plurality of point information, a plurality of point unit physical quantities, the total number of mesh points, a plurality of cell information, and a plurality of cell unit physical quantities + physical It consists of statistics and the total number of mesh cells.

The result ID is an identifier for a plurality of simulation results D15. The model ID is the simulation model ID, and the condition ID is the simulation condition ID. Time is the elapsed time in the simulation results.

The point information and cell information are regions obtained by slicing the three-dimensional shape of the piping route composed of the part mesh in the piping configuration information D11 in the piping route information D12 with the cross section defined by the section information D161 in each part on the route. The data structure is the same as that of the part mesh information D111. The point unit physical quantity is the mesh of the region obtained by slicing the three-dimensional shape of the piping route composed of the part mesh in the piping configuration information D11 in the piping route information D12 with the cross section defined by the cross section information D161 in each part on the route. The data configuration is the same as that of the simulation result D15.

The cell unit physical quantity + physical statistic is obtained by cutting the three-dimensional shape of the piping route composed of the part mesh in the piping configuration information D11 in the piping route information D12 into a cross section defined by the cross section information D161 in each part on the route. It shows the physical quantity and physical statistic in the cells that make up the mesh of the region. The cell unit physical quantity + physical statistic is a local cell ID, a part mesh local ID, a section ID, a plurality of physical quantities, the number of physical quantity types, a plurality of cell unit physical statistics, a plurality of physical statistic integral values, and the number of physical statistic types. It consists of The local cell ID is an ID for linking which cell information among the cell information in the pipe configuration information D113 in the pipe route information D12 and the part mesh information D111 in the pipe route information D12 corresponds to the point unit physical quantity.

The part mesh local ID is a part mesh local ID linked to the part mesh information D111 in the piping configuration information D113 in the piping route information D12. The cross-section ID is an ID for linking which cross-section information among the cross-section information in each part on the route D161 corresponds. The physical quantity indicates the physical quantity at the representative coordinates of the cell indicated by the cell information associated with the local point ID, and is composed of the number of dimensions and a plurality of physical quantity elements. The cell unit physical statistics are physical statistics in each cell before integration, such as angular momentum per cell and momentum per cell. The physical statistic integrated value indicates a physical statistic such as swirl strength obtained by integrating the angular momentum of each cell and the momentum of each cell over all cells.

FIG. 29 is a diagram showing the data configuration of cross-sectional physical statistics information.

In FIG. 29, the cross-sectional physical statistics information D163 includes the result ID, model ID, condition ID, pipe axis coordinate maximum value, pipe axis coordinate minimum value, number of cross sections, total time, number of single piping routes, and physical statistics per cross section. Consists of information.

The result ID is an identifier for a plurality of simulation results D15. The model ID is the simulation model ID, and the condition ID is the simulation condition ID. The total time is the elapsed time obtained by subtracting the start time from the end time of the simulation result. The pipe axis coordinate maximum and minimum values are the maximum and minimum values of the division coordinates in the pipe route. The number of piping route single paths indicates the number of piping route single paths in the piping route.

The cross-section unit physical statistics information is information required to draw a graph of physical statistics with respect to the tube axis coordinate, and is a collection of information for each cross-section. Section unit physical statistics information includes section ID, part mesh local ID, physical statistics summary information for the number of multiple types of physical statistics, part type, part color, pipe axis coordinates, multiple passage route information, and number of passage routes. consists of The cross-section ID is an ID for linking which cross-section information among the cross-section information in each part on the route D161 corresponds. The part mesh local ID is a part mesh local ID linked to the part mesh information D111 in the piping configuration information D113 in the piping route information D12.

The physical statistic summary information summarizes the time average and the standard deviation of each physical statistic over time. The component type is information about the type of component mesh, and indicates straight pipes, curved pipes, branches, and the like. A component color is a color assigned to a component, and is used to identify the component in graphs and 3D data. The length in the tube axis direction is the value of the length of the part in the tube axis direction. The tube axis coordinate is the value of the tube axis coordinate of the cross section along the entire route. The passage route information is information indicating which pipe route single route the part passes through, and is composed of a pipe route single route ID and a flow direction number. The piping route single-path ID is an identifier that indicates which piping route single-path information is among the piping route single-path information in the piping route information D12. The flow direction number indicates in which direction the single piping route is directed in the piping route.

FIG. 30 is a diagram showing a screen display example on the display.

In FIG. 30, the screen display on the display consists of a tube axis coordinate-physical statistics graph output screen G1 and a piping system 3D data output screen G2. The tube axis coordinate-physical statistics graph output screen G1 displays a graph (physical statistics visualization graph) of the turning strength with respect to the tube axis coordinates for each of the paths 1 and 2, with the path 1 on the top and the path on the bottom. 2 is shown. The horizontal axis shows the pipe axis coordinates, and the vertical axis shows the turning strength. The time average of the turning strength, the average value of the turning strength plus the standard deviation, and the mean value of the turning strength minus the standard deviation. is drawing. Each part is color-coded, and the part name is written in the part area.

The piping system 3D data output screen G2 is drawn by projecting the three-dimensional shape of the piping system two-dimensionally from a specific viewpoint, and each part is drawn with different colors. In addition, character strings of part names are drawn near each part, and guideline arrows and path names are also drawn for paths.

In the present embodiment configured as described above, the horizontal axis represents the pipe axis coordinates and the vertical axis represents the physical statistics. From the simulation results, the person in charge of design can easily judge the validity of the results.

<Modified example of the first embodiment>
This modification will be described below with reference to FIG.

This modification is for a case where the hardware configuration is different from that of the first embodiment.

FIG. 31 is a diagram showing the hardware configuration of the simulation result visualization system in this modified example. In the figure, the same reference numerals are given to the same members as in the first embodiment, and the description thereof is omitted.

In FIG. 31, the simulation result visualization system D100A includes a piping system design unit D200, a piping system design operation input unit D106A, a piping system design display unit D105A, a 3D fluid analysis simulation unit D300, a simulation operation input unit D106B, It is composed of a simulation display section D105B, a visualization section D400, a visualization operation input section D106C, a visualization display section D105C, and a network D500.

Thus, the piping system design part D200, the 3D fluid analysis simulation part D300, and the visualization part D400 each have operation input parts D106A to D106C and display parts D105A to D105C. Each operation input unit D106A to D106C converts an operation input from the user into an electric signal and transmits the electric signal to each core unit, and corresponds to a keyboard, a touch panel, a mouse, and the like. Each of the display units D105A to D105C is for outputting an image output from each core unit to the user, and refers to a display or a printer.

The piping system design unit D200, the 3D fluid analysis simulation unit D300, and the visualization unit D400 include CPUs (Central Processor Units) D201 to D401, RAMs (Random Access Memory) D202 to D402, recording devices D203 to D403, and I/Fs. (Interface) Consists of D204 to D404. The CPUD201 to D401 execute arithmetic processing according to a program for visualizing simulation results. RAM_D202 to D402 temporarily store data in a program for visualizing simulation results. The recording devices D203 to D403 record programs, data, and the like for performing processing of each unit, and correspond to hard disk drives and the like.

A piping system design program is stored in the recording device D203 of the piping system design section D200, a 3D fluid analysis simulation program is stored in the recording device D303 of the 3D fluid analysis simulation section D300, and a visualization program is stored in the recording device D403 of the visualization section D400. stored.

The functions of the piping system program, the 3D fluid analysis simulation program, and the visualization program are the same as in the first embodiment. However, data is exchanged between the units through a network.

Other configurations are the same as those of the first embodiment.

The same effects as those of the first embodiment can be obtained in this modified example configured as described above.

<Appendix>
It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications and combinations within the scope of the invention. Moreover, the present invention is not limited to those having all the configurations described in the above embodiments, and includes those having some of the configurations omitted. Further, each of the above configurations, functions, etc. may be realized by designing a part or all of them, for example, with an integrated circuit. Moreover, each of the above configurations, functions, etc. may be realized by software by a processor interpreting and executing a program for realizing each function.

B1... piping system design unit, B11... parts creation unit, B12... parts storage unit, B13... parts selection/connection unit, B14... piping configuration storage unit, B15... piping route information generation unit, B16... piping route information storage unit, B2... 3D fluid analysis simulation unit, B21... simulation condition setting unit, B22... simulation model selection unit, B23... piping route information reading unit 1, B24... simulation calculation unit, B25... simulation result storage unit, B3... visualization unit, B31 . In-path part information storage unit B314 Path cross-section definition unit B315 In-path cross-section information storage unit B32 Physical statistics calculation unit B321 Simulation result reading unit 1 B322 In each path part Cross-section information reading unit B323... simulation result cross-section extraction unit B324... cell unit physical statistics calculation unit B325... cross-section unit physical statistics integral calculation unit B326... physical statistics time average/standard deviation calculation unit B327... cross section Unit physical statistic storage unit B33... Tube axis coordinate calculation unit B331... Path section information reading unit for each part B332... Each section tube axis coordinate calculation unit B333... Path section information inside each part with tube axis coordinates Storage unit, B34... Graph output unit, B341... Reading unit 1 for section information inside each part on the route with pipe axis coordinates, B342... Reading unit for physical statistics per section, B343... Physical statistics on each part section/pipe axis coordinates ( Horizontal axis and vertical axis) extraction unit, B344: graph drawing unit, B345: graph setting unit, B346: graph display output unit, B35: three-dimensional data output unit, B351: section information reading unit for each part on the route with tube axis coordinates 2, B352... Simulation result reading unit 2, B353... Each component mesh extraction unit, B354... 3D data drawing unit, B355... Drawing setting unit, B356... 3D data display output unit, D1... Various data, D11... Piping system design program data, D111 ... parts mesh information, D1111 ... parts information, D112 ... parts list, D113 ... piping configuration information, D114 ... piping configuration list, D12 ... piping route information, D13 ... piping route list, D14 ... 3D fluid analysis simulation program data, D141...simulation conditions/model list, D15...simulation results, D16...data for visualization program , D161... Sectional information in each part on the route, D162... Section unit simulation result, D163... Section physical statistics information, F1... Piping system design process, F2... Fluid analysis simulation execution process, F3... Part information extraction/addition setting process , F4... Path section definition process, F5... Physical statistics/pipe axis coordinate calculation process, F6... Graph/3D data output process, G1... Tube axis coordinate-physical statistics graph output screen, G2... Piping system 3D data output screen

Claims (10)

A piping system design information holding unit that holds information on the start coordinates, end coordinates, pipe axis direction length, and diameter of each piping part in a piping system composed of a plurality of piping parts, and a fluid phenomenon in the piping system. In a simulation result visualization system having a fluid analysis simulation unit that calculates physical quantities related to fluid phenomena at each time based on a simulated physical formula, and a visualization unit that summarizes and draws information on the physical quantities and outputs the drawing content,
The visualization unit
a physical statistics calculation unit that calculates physical statistics from the physical quantity;
a pipe axis coordinate calculation unit for calculating pipe axis coordinates in the piping system;
a graph drawing unit for drawing a physical statistics visualization graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the physical statistics ,
The simulation result visualization system , wherein the physical statistic is a physical statistic calculated from a swirl number . A piping system design information holding unit that holds information on the start coordinates, end coordinates, pipe axis direction length, and diameter of each piping part in a piping system composed of a plurality of piping parts, and a fluid phenomenon in the piping system. In a simulation result visualization system having a fluid analysis simulation unit that calculates physical quantities related to fluid phenomena at each time based on a simulated physical formula, and a visualization unit that summarizes and draws information on the physical quantities and outputs the drawing content,
The visualization unit
a physical statistics calculation unit that calculates physical statistics from the physical quantity;
a pipe axis coordinate calculation unit for calculating pipe axis coordinates in the piping system;
a graph drawing unit for drawing a physical statistics visualization graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the physical statistics ,
The simulation result visualization system , wherein the physical statistics are a time average relating to the physical statistics, a time average plus a time standard deviation, and a time average minus the time standard deviation . A piping system design information holding device that holds information on the start coordinate, end coordinate, pipe axis direction length, and diameter of each piping part in a piping system composed of a plurality of piping parts, and a fluid phenomenon in the piping system A fluid analysis simulation device that calculates physical quantities related to fluid phenomena at each time based on a simulated physical formula, a visualization device that summarizes and draws the information on the physical quantities and outputs the drawing contents, and data transmission between each device In a simulation result visualization system having a network device that performs
The visualization device
a physical statistics calculation unit that calculates physical statistics from the physical quantity;
a pipe axis coordinate calculation unit for calculating pipe axis coordinates in the piping system;
a graph drawing unit for drawing a physical statistics visualization graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the physical statistics ,
The simulation result visualization system , wherein the physical statistic is a physical statistic calculated from a swirl number . A piping system design information holding device that holds information on the start coordinate, end coordinate, pipe axis direction length, and diameter of each piping part in a piping system composed of a plurality of piping parts, and a fluid phenomenon in the piping system A fluid analysis simulation device that calculates physical quantities related to fluid phenomena at each time based on a simulated physical formula, a visualization device that summarizes and draws the information on the physical quantities and outputs the drawing contents, and data transmission between each device In a simulation result visualization system having a network device that performs
The visualization device
a physical statistics calculation unit that calculates physical statistics from the physical quantity;
a pipe axis coordinate calculation unit for calculating pipe axis coordinates in the piping system;
a graph drawing unit for drawing a physical statistics visualization graph in which the horizontal axis is the tube axis coordinate and the vertical axis is the physical statistics ,
The simulation result visualization system , wherein the physical statistics are a time average relating to the physical statistics, a time average plus a time standard deviation, and a time average minus the time standard deviation . In the simulation result visualization system according to any one of claims 1 to 4 ,
A simulation result visualization system, wherein a graph with pipe axis coordinates on the horizontal axis and physical statistics on the vertical axis is displayed for each route of the piping system in the physical statistics visualization graph. In the simulation result visualization system according to any one of claims 1 to 4 ,
A simulation result visualization system, wherein the three-dimensional shape of the piping system is drawn on the physical statistics visualization graph together with a graph in which the horizontal axis is the pipe axis coordinate and the vertical axis is the physical statistics. In the simulation result visualization system according to claim 6 ,
A simulation result visualization system, wherein the three-dimensional shape of the piping system is drawn by color for each part. In the simulation result visualization system according to any one of claims 1 to 4 ,
A simulation result visualization system, wherein a part name is drawn in a display area of each part in the three-dimensional shape of the piping system. In the simulation result visualization system according to any one of claims 1 to 4 ,
The simulation result visualization system, wherein the physical statistic is a time average of the physical statistic. In the simulation result visualization system according to any one of claims 1 to 4 ,
A simulation result visualization system, wherein the physical statistics are time averages, maximum values, and minimum values of the physical statistics.

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