CN103294522A - Reduction scheme for numerical wind tunnel simulation flow of ship and warship radar antenna devices - Google Patents
Reduction scheme for numerical wind tunnel simulation flow of ship and warship radar antenna devices Download PDFInfo
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- CN103294522A CN103294522A CN2013102743610A CN201310274361A CN103294522A CN 103294522 A CN103294522 A CN 103294522A CN 2013102743610 A CN2013102743610 A CN 2013102743610A CN 201310274361 A CN201310274361 A CN 201310274361A CN 103294522 A CN103294522 A CN 103294522A
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Abstract
The invention relates to a reduction scheme for a numerical wind tunnel simulation flow of ship and warship radar antenna devices. Numerical wind tunnel simulation of the ship and warship radar antenna devices is an external flow field numerical simulation calculation method aimed at the ship and warship radar antenna devices, parameter combination suitable for external flow field calculation of various radar antenna devices can be summarized by means of the external flow field simulation calculation on the different ship and warship radar antenna devices, a more simplified calculation flow can be arranged by combining with an existing automatic assignment technology, and the reduction scheme for the numerical wind tunnel simulation flow of the ship and warship radar antenna devices with high computational accuracy is provided, so that high calculation accuracy can be ensured, unnecessary parameter setting errors can be effectively avoided, external flow field numerical simulation calculation time of ship and warship radar antennas is reduced, and work efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind ofly carry out brand-new calculation process reduction procedure at naval vessel radar antenna equipment outflow Flow Field Numerical analog simulation computing method, namely can improve computational accuracy, can avoid unnecessary parameter that mistake is set again effectively, reduce the naval vessel radar antenna outflow Flow Field Numerical simulation calculation time, increase work efficiency.
Background technology
Naval vessel radar antenna equipment is in the working environment that strong wind carries for a long time, must consider the aeroperformance of radar antenna in the design phase, such as: the resistance coefficient of radar antenna, lift coefficient and sideway force coefficient etc.In order to select suitable gear case and drive motor, also upsetting moment, the orientation moment of radar antenna and the calculating of the moment of rolling there is higher accuracy requirement.
Way in the past is that the radar antenna model of design is scaled, carries out wind tunnel test then, so not only expends a large amount of research funds, has also delayed design schedule greatly.After Fluid Mechanics Computation is full-fledged, at the design initial stage model is carried out the wind tunnel test simulation calculation, so both reduced research fund, can accelerate Development Schedule greatly again.
Numerical value wind-tunnel technology is to utilize Fluid Mechanics Computation, be constantly with time discrete, be mesh node with spatial spreading, discrete to net point physical descriptor, and then obtain the fluid mechanics fundamental equation of discrete form, obtain its numerical approximation solution by computer solving, come the flow field environment of analog machine in wind tunnel test.Because these computing method need stronger theoretical foundation, even use ripe business software, also need to spend the more time in forward and backward processing.And because accounting equation is more, the flow process complexity needs the parameter of setting more, and normal appearance is improper because certain parameter arranges in actual computation causes the result of calculation distortion maybe can not restrain.
Prior art is mainly reflected on the automatic assignment of outer flow field simulation calculation parameter at present, " design and development of radar antenna wind-tunnel simulation analysis software " for example publishes thesis, exactly numerical value wind-tunnel technology and automatic assignment technology are combined, simplify calculation process, increase work efficiency.Because the prior art scheme has very strong versatility, all calculating parameters are not all considered the design feature of computation model, when the calculation of complex model, the problem that convergence is slow even can't restrain may occur calculating.
The present invention proposes a kind of realization, outer flow process simulation calculation reduction procedure of the simple high precision of flow process naval vessel radar antenna equipment of being easy to.
Calculation process reduction procedure of the present invention is different from conventional method, under the prerequisite that the core calculations system of equations remains unchanged, the parameter setting is sorted out, simplified, according to different shipborne radar antenna types, a part provides the designer recommended parameter by calculating, a part is transferred to the designer fully and is artificially controlled, and a part is by integrating, fully by the computing machine automatic assignment.Improve computational accuracy, reduce the designer number of parameters artificially is set, reduce the difficulty of calculating and setting, improve the efficient of work.
Summary of the invention
The objective of the invention is: a kind of reduction procedure at naval vessel radar antenna equipment numerical value wind-tunnel simulation flow is provided.
Realize that solution of the present invention is: naval vessel radar antenna equipment numerical value wind-tunnel simulation flow is classified as 7 big classes, simplify at the basic setup flow process of each big class then, finally carry out the manual setting of 17 parameters, all the other calculating parameters carry out computing machine and arrange automatically, and parameter value is different and different according to antenna surface battle array type.The a whole set of calculating parameter of final formation arranges rule, submits to software to carry out simulation calculation.Realize the high precision of result of calculation and the real simplification of numerical value wind-tunnel simulation flow.
The key Design point of this reduction procedure is: the classification of flow process merges, the automatic setting of parameter.Flow process behind its concrete simplification is:
Flow process 1, the model setting, major function is manually to import the radar antenna three-dimensional model; Radar antenna face battle array type manually is set; Automatically calculate antenna basic size, change in coordinate axis direction;
Flow process 2, the zoning arranges, and major function is manually to set up the Flow Field Calculation zone;
Flow process 3, the boundary condition setting, major function is manually to set flow field entrance, outlet, wall; The flow field parameter on all kinds of borders of automatic setting;
Flow process 4 generates computing grid, and major function is manually to generate veil lattice and volume mesh; By to moulded dimension and zoning size calculation, and the selection of face battle array type, select parameters such as trellis-type, size to carry out the mesh parameter setting automatically;
Flow process 5, the aftertreatment setting, major function is the manual creation section; The distribution view of automatic formation speed, acceleration, pressure;
Flow process 6, the calculating parameter setting, major function is manually to set mode of motion; Manually set parameters such as calculating step-length, time, iteration step number; Automatically the result who sets according to mode of motion set computer memory, fluid type, compute type, equation type, the time other calculating parameters such as field type, viscosity term, turbulent equation, fluid properties;
Flow process 7, the output result, major function is important results data such as automatic output resistance, resistance coefficient, moment of resistance coefficient;
The present invention is based on the software platform of STAR-ccm+5.06, adopt the Java language programming, be applied to engineering reality.
The present invention compared with prior art, its remarkable advantage is: 1. arrange under the constant prerequisite of flow process, the project of setting significantly reduces; 2. the special parameter that calculates at naval vessel radar antenna numerical value wind-tunnel passes through the computer program automatic assignment, reduces the mistake that flow process is set, and improves result's accuracy; 3. under the constant prerequisite of basic calculation equation, by Automatic parameter assignment function, improve the accuracy of similar products result of calculation; 4. the project that arranges is easily understood, and reduces the requirement of ability that designer's professional knowledge is grasped.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Description of drawings
Fig. 1 is the flow process comparison diagram of reduction procedure of the present invention and normal process scheme.
Fig. 2 is the sectional drawing of the naval vessel radar antenna equipment numerical value wind-tunnel simulation software that writes according to the present invention.
Embodiment
Specific implementation method of the present invention is:
Flow process 1, the model setting, major function is manually to import the radar antenna three-dimensional model; Radar antenna face battle array type manually is set; Automatically calculate antenna basic size, change in coordinate axis direction;
Flow process 2, the zoning arranges, and major function is manually to set up the Flow Field Calculation zone;
Flow process 3, the boundary condition setting, major function is manually to set flow field entrance, outlet, wall; The flow field parameter on all kinds of borders of automatic setting;
Flow process 4 generates computing grid, and major function is manually to generate veil lattice and volume mesh; By to moulded dimension and zoning size calculation, and the selection of face battle array type, select parameters such as trellis-type, size to carry out the mesh parameter setting automatically;
Flow process 5, the aftertreatment setting, major function is the manual creation section; The distribution view of automatic formation speed, acceleration, pressure;
Flow process 6, the calculating parameter setting, major function is manually to set mode of motion; Manually set parameters such as calculating step-length, time, iteration step number; Automatically the result who sets according to mode of motion set computer memory, fluid type, compute type, equation type, the time other calculating parameters such as field type, viscosity term, turbulent equation, fluid properties;
Flow process 7, the output result, major function is important results data such as automatic output resistance, resistance coefficient, moment of resistance coefficient.
Claims (3)
1. the reduction procedure of a naval vessel radar antenna equipment numerical value wind-tunnel simulation flow, it is characterized by: naval vessel radar antenna equipment numerical value wind-tunnel simulation flow is classified as 7 big classes, simplify at the basic setup flow process of each big class then, finally carry out the manual setting of 17 parameters, all the other calculating parameters carry out computing machine and arrange automatically, the a whole set of calculating parameter of final formation arranges rule, submits to software to carry out simulation calculation, realizes the real simplification of numerical value wind-tunnel simulation flow.
2. the reduction procedure of a naval vessel as claimed in claim 1 radar antenna equipment numerical value wind-tunnel simulation flow, it is characterized by: carry out the calculating parameter classified finishing respectively at parabola, planar array and three kinds of dissimilar naval vessel radar antennas of row feedback formula, utilize the automatic assignment technology, realize the high precision of result of calculation.
3. the reduction procedure of a high precision as claimed in claim 1 naval vessel radar antenna equipment numerical value wind-tunnel simulation flow is characterized in that: the classification merging of calculation process, the automatic setting of parameter; Flow process behind its concrete simplification is: flow process 1, and the model setting manually imports the radar antenna three-dimensional model; Radar antenna face battle array type manually is set; Automatically calculate antenna basic size, change in coordinate axis direction; Flow process 2, the zoning arranges, and manually sets up the Flow Field Calculation zone; Flow process 3, flow field entrance, outlet, wall are manually set in the boundary condition setting; The flow field parameter on all kinds of borders of automatic setting; Flow process 4 generates computing grid, manually generates veil lattice and volume mesh; By to moulded dimension and zoning size calculation, and the selection of face battle array type, select parameters such as trellis-type, size to carry out the mesh parameter setting automatically; Flow process 5, aftertreatment setting, manual creation section; The distribution view of automatic formation speed, acceleration, pressure; Flow process 6, mode of motion is manually set in the calculating parameter setting; Manually set parameters such as calculating step-length, time, iteration step number; Automatically the result who sets according to mode of motion set computer memory, fluid type, compute type, equation type, the time other calculating parameters such as field type, viscosity term, turbulent equation, fluid properties; Flow process 7, output result, important results data such as output resistance, resistance coefficient, moment of resistance coefficient automatically.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106599419A (en) * | 2016-12-02 | 2017-04-26 | 中国船舶工业系统工程研究院 | Ship stern flow field numerical simulation and wind tunnel experiment data comprehensive comparison method |
| CN109443689A (en) * | 2018-11-28 | 2019-03-08 | 南京航空航天大学 | The wind tunnel test measuring device and its measurement method of dynamic aerodynamics when a kind of radar antenna rotary work |
| KR20220033158A (en) * | 2020-09-09 | 2022-03-16 | 주식회사 다윈에어로테크 | System and method for educating mechanical pulse radar operation using virtual reality |
| CN117272424A (en) * | 2023-11-17 | 2023-12-22 | 四川酷赛科技有限公司 | MIMO antenna automatic layout system for mobile terminal |
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| US20030018690A1 (en) * | 2001-03-12 | 2003-01-23 | James Kulp | Digital data processing apparatus and methods with dynamically configurable application execution on accelerated resources |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106599419A (en) * | 2016-12-02 | 2017-04-26 | 中国船舶工业系统工程研究院 | Ship stern flow field numerical simulation and wind tunnel experiment data comprehensive comparison method |
| CN106599419B (en) * | 2016-12-02 | 2019-07-12 | 中国船舶工业系统工程研究院 | Naval vessel stern flow field numerical simulation and the control methods of wind tunnel test aggregation of data |
| CN109443689A (en) * | 2018-11-28 | 2019-03-08 | 南京航空航天大学 | The wind tunnel test measuring device and its measurement method of dynamic aerodynamics when a kind of radar antenna rotary work |
| KR20220033158A (en) * | 2020-09-09 | 2022-03-16 | 주식회사 다윈에어로테크 | System and method for educating mechanical pulse radar operation using virtual reality |
| KR102393734B1 (en) * | 2020-09-09 | 2022-05-04 | 주식회사 다윈에어로테크 | System and method for educating mechanical pulse radar operation using virtual reality |
| CN117272424A (en) * | 2023-11-17 | 2023-12-22 | 四川酷赛科技有限公司 | MIMO antenna automatic layout system for mobile terminal |
| CN117272424B (en) * | 2023-11-17 | 2024-03-08 | 四川酷赛科技有限公司 | MIMO antenna automatic layout system for mobile terminal |
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Application publication date: 20130911 |