CN107818221B - Interior edge column type water dropper, structural optimization method, device and equipment - Google Patents
Interior edge column type water dropper, structural optimization method, device and equipment Download PDFInfo
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- CN107818221B CN107818221B CN201711057464.6A CN201711057464A CN107818221B CN 107818221 B CN107818221 B CN 107818221B CN 201711057464 A CN201711057464 A CN 201711057464A CN 107818221 B CN107818221 B CN 107818221B
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- liquid stream
- trickle irrigation
- stream model
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/06—Multi-objective optimisation, e.g. Pareto optimisation using simulated annealing [SA], ant colony algorithms or genetic algorithms [GA]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/10—Numerical modelling
Abstract
The present invention provides edge column type water dropper, structural optimization method, device and equipment in one kind, and the head and the tail both ends of the interior edge column type water dropper are formed to have the scheduled gradient so that being gradually reduced from the head and the tail both ends of the interior edge column type water dropper towards its internal internal diameter.The structural optimization method that interior edge column type water dropper through the embodiment of the present invention is connected section with trickle irrigation inside pipe wall is internally inlayed column type water dropper and is optimized, and the gradient at the head and the tail both ends according to the suitable interior edge column type water dropper of optimum results selection, so that liquid stream smoothly enters water dropper constriction cross sectional area, vortex caused by not will form because of flow section mutation, so that impurity be avoided to deposit.
Description
Technical field
The present invention relates to irrigating and drip irrigation technique field, more particularly to edge column type water dropper in a kind of, its in drip irrigation pipe
Structural optimization method, device, equipment and the computer readable storage medium of wall linking section.
Background technique
Trickle irrigation is a kind of higher water-saving irrigation technique of water utilization rate, has water-saving, section fertilizer, saving of labor, irrigation quality
High advantage.Using drip irrigation technique carry out field irrigation, can timely and appropriate discovery Fertigation, realize fertilizer Shaoshi, apply frequently, it is even apply,
Crop yield is improved, waste of human resource is reduced and reduces environmental pollution.
Water dropper is the important component of drip irrigation system, its performance superiority and inferiority directly affects the irrigation uniformity of system, fills
Irrigate efficiency, water-saving ability and system lifetim etc..Currently, the water dropper in general interior edge column type runner drip irrigation pipe, head and the tail
Section intersects vertically with trickle irrigation inside pipe wall, and flow section in pipe is caused to be mutated, the adjustment of liquid stream internal structure, flow velocity redistribution,
Streamline bending generates vortex, and the most followability of fine particle carried secretly in irrigation water is good, and particle will be involved in vortex at this time
Do shuttling movement；It pours water after stopping, particle is deposited in drip irrigation pipe；Start moment to next watering period, liquid stream will be unexpected
Full of whole drip irrigation pipe, static particle meets with the fluid force of burst, moment will be brought into water dropper inner flow passage.Due to water dropper
Inner flow passage size is smaller, and structure is more complicated, and sediment outflow ability is poor, and a large amount of particles, which are poured in, blocks runner for moment, eventually leads to
Uniformity of irrigation water appilcation reduces, and causes plant growth inconsistent and the underproduction, and replacement pipeline will increase investment and labour.Blocking is asked at present
Topic is to restrict a principal element of Drip Irrigation Technology Extension and application.
Summary of the invention
In view of this, to provide edge column type water dropper, its structure for being connected section with trickle irrigation inside pipe wall in one kind excellent by the present invention
Change method, apparatus, equipment and computer readable storage medium, internally inlays the knot that column type water dropper is connected section with trickle irrigation inside pipe wall
Structure optimizes, thus a possibility that physical clogging occurs for edge column type water dropper inner flow passage in reducing.
In order to solve the above technical problems, on the one hand, the present invention, which provides, inlays column type water dropper, the interior edge column type in one kind
The head and the tail both ends of water dropper are formed to have the scheduled gradient so that from the head and the tail both ends of the interior edge column type water dropper towards interior
Its internal diameter of portion is gradually reduced.
According to some embodiments of the present invention, the gradient is 30 °~60 °.
Other embodiments according to the present invention, the gradient are 45 °.
Second aspect, the embodiment of the present invention provide the structure optimization that interior edge column type water dropper is connected section with trickle irrigation inside pipe wall
Method, comprising the following steps:
Step S10 creates liquid stream model, interior edge column type water dropper described in the liquid stream model and the trickle irrigation inside pipe wall
The angle initialization for being connected the relatively described trickle irrigation inside pipe wall of section is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model according to the grid dividing and boundary definition, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the trickle irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model according to the obtained calculated result of step S30.
According to some embodiments of the present invention, the method also includes following steps:
Step S50, changes the α within the scope of 90 °~150 °, and repeating said steps S10 is obtained to the step S40
The trickle irrigation efficiency under different angle.
Other embodiments according to the present invention, taking the α respectively is 90 °, 120 °, 135 ° and 150 °, more different
The trickle irrigation efficiency under angle is to obtain so that the angle in the case of the trickle irrigation efficiency highest.
Still other embodiments according to the present invention in the step S10, create the liquid stream mould with Auto-CAD software
Type, and result is exported as into ACIS formatted file,
In the step S20, the grid dividing and boundary definition are carried out to the liquid stream model with GAMBIT software,
In the step S30, numerical value calculating is carried out to the liquid stream model with FLUENT software.
The third aspect, the embodiment of the present invention provide the structure that edge column type water dropper in one kind is connected section with trickle irrigation inside pipe wall
Optimize device, comprising:
Liquid stream model creation module is used to create liquid stream model, interior edge column type water dropper described in the liquid stream model
The angle initialization of the trickle irrigation inside pipe wall opposite with trickle irrigation inside pipe wall linking section is α；
Division module, for carrying out grid dividing and boundary definition to the liquid stream model；
Computing module carries out numerical value calculating to the liquid stream model, to obtain according to the grid dividing and boundary definition
Take the drip irrigation pipe inlet flow rate under the liquid stream Model Condition, the interior edge column type water dropper exit velocity and the drop
Fill pipe exit velocity；
Judgment module judges the trickle irrigation effect under the liquid stream model according to the calculated result that the computing module obtains
Rate.
Fourth aspect, the embodiment of the present invention provide the structure that edge column type water dropper in one kind is connected section with trickle irrigation inside pipe wall
Optimize equipment, comprising:
Processor；And memory, it is stored with computer program instructions in the memory,
Wherein, when the computer program instructions are run by the processor, so that the processor executes following step
It is rapid:
Step S10 creates liquid stream model, interior edge column type water dropper described in the liquid stream model and the trickle irrigation inside pipe wall
The angle initialization for being connected the relatively described trickle irrigation inside pipe wall of section is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model according to the grid dividing and boundary definition, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the trickle irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model according to the obtained calculated result of step S30.
5th aspect, the embodiment of the present invention provide a kind of computer readable storage medium, the computer-readable storage medium
Matter is stored with computer program, when the computer program is run by processor, so that the processor executes following steps:
Step S10 creates liquid stream model, interior edge column type water dropper described in the liquid stream model and the trickle irrigation inside pipe wall
The angle initialization for being connected the relatively described trickle irrigation inside pipe wall of section is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model according to the grid dividing and boundary definition, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the trickle irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model according to the obtained calculated result of step S30.
Above-mentioned technical proposal of the invention one of at least has the advantages that:
Interior edge column type water dropper through the embodiment of the present invention is connected the structural optimization method pair of section with trickle irrigation inside pipe wall
Interior edge column type water dropper optimizes, and the slope at the head and the tail both ends according to the suitable interior edge column type water dropper of optimum results selection
The angle of edge column type water dropper trickle irrigation inside pipe wall opposite with trickle irrigation inside pipe wall linking section is so that liquid stream in degree, i.e. selection are suitable
Smoothly enter water dropper constriction cross sectional area, vortex caused by not will form because of flow section mutation, so that impurity be avoided to deposit.
Detailed description of the invention
Fig. 1 is the vertical section schematic diagram of the drip irrigation pipe of the interior edge column type water dropper with the embodiment of the present invention；
Fig. 2 is that the interior edge column type water dropper of the embodiment of the present invention is connected the structural optimization method of section with trickle irrigation inside pipe wall
Flow diagram；
Fig. 3 is that the interior edge column type water dropper of the embodiment of the present invention is connected in the structural optimization method of section with trickle irrigation inside pipe wall
Trickle irrigation duct fluid flow model schematic；
Fig. 4 is that the interior edge column type water dropper of the embodiment of the present invention is connected in the structural optimization method of section with trickle irrigation inside pipe wall
Trickle irrigation duct fluid flow model meshes divide and a schematic diagram of boundary definition result；
Fig. 5 is that the interior edge column type water dropper of the embodiment of the present invention is connected in the structural optimization method of section with trickle irrigation inside pipe wall
Trickle irrigation duct fluid flow model meshes divide and another schematic diagram of boundary definition result；
Fig. 6 is that the interior edge column type water dropper of the embodiment of the present invention is connected in the structural optimization method of section with trickle irrigation inside pipe wall
One speed vector figure of water dropper partial enlargement；
Fig. 7 is that the interior edge column type water dropper of the embodiment of the present invention is connected in the structural optimization method of section with trickle irrigation inside pipe wall
Another speed vector figure of water dropper partial enlargement；
Fig. 8 is the schematic diagram for the structure optimization device that interior edge column type water dropper is connected section with trickle irrigation inside pipe wall；
Fig. 9 is the schematic diagram of the electronic equipment of the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.
The interior edge column type water dropper 100 of embodiment according to a first aspect of the present invention, the head and the tail two of interior edge column type water dropper 100
End is formed to have the scheduled gradient so that gradually contracting from the head and the tail both ends of interior edge column type water dropper 100 towards its internal internal diameter
It is small.
Specifically, as shown in Figure 1, wherein arrow is oriented to water (flow) direction, indicates the value of slope with β.Justify with the interior edge
Liquid stream can smoothly enter 100 constriction cross sectional area of water dropper in the drip irrigation pipe 200 of pillar water dropper 100, not will lead to drip irrigation pipe 200
Interior flow section mutation, improves sediment outflow ability to guarantee the uniformity poured water.
In some preferred embodiments of the invention, the scheduled gradient is 30 °~60 °.The interior edge circle of the range of grade
The sediment outflow ability of pillar water dropper 100 is more preferable, more difficult to result in blockage.
A specific embodiment according to the present invention, the scheduled gradient are 45 °.The head and the tail two of interior edge column type water dropper 100
End, which is formed to have scheduled 45 ° of gradients, can make drip irrigation pipe 200 reach best sediment outflow effect, pour water more evenly.
The structure that the interior edge column type water dropper of embodiment is connected section with trickle irrigation inside pipe wall according to a second aspect of the present invention is excellent
Change method, as shown in Figure 2, comprising the following steps:
Step S10 creates liquid stream model 300, and interior edge column type water dropper is connected disconnected with trickle irrigation inside pipe wall in liquid stream model 300
Face is α with respect to the angle initialization of trickle irrigation inside pipe wall
Specifically, α represents the angle of interior edge column type water dropper trickle irrigation inside pipe wall opposite with trickle irrigation inside pipe wall linking section, should
Angle is identical as the interior edge supplementary angle of scheduled gradient β at head and the tail both ends of column type water dropper.
Further, interior edge column type water dropper further includes walking as follows with the structural optimization method that trickle irrigation inside pipe wall is connected section
Rapid: step S50 changes α within the scope of 90 °~150 °, repeats step S10 to step S40, obtains the trickle irrigation effect under different angle
Rate.α value is multiple in 90 °~150 °, and calculates the drip irrigation pipe of the α of each different values, optimal to choose
Drip irrigation pipe structure.
Some specific embodiments according to the present invention, taking α respectively is 90 °, 120 °, 135 ° and 150 °, more different angles
Trickle irrigation efficiency under degree is to obtain so that angle [alpha] in the case of trickle irrigation efficiency highest.
In other embodiments of the invention, in step S10, liquid stream model is created with Auto-CAD software, and will knot
Fruit exports as ACIS formatted file, in step S20, carries out grid dividing and boundary definition to liquid stream model with GAMBIT software,
In step S30, numerical value calculating is carried out to liquid stream model with FLUENT software.
Specifically, the liquid stream model 300 created in step S10 is as shown in Figure 3.
Step S20 carries out grid dividing and boundary definition to liquid stream model 300
According to some embodiments of the present invention, step S20 may include following sub-step:
ACIS file is imported GAMBIT software by step S21.
Step S22, grid division: for example, Tri (triangle) grid cell, Pave can be selected to all liquid stream models 300
(creation unstrctured grid) trellis-type, grid spacing determine that being worth is 0.5 using Interval Size, last Apply creation
Grid.By taking the section water dropper of α=90 ° and α=135 ° as an example, the number of grid of the section water dropper of α=90 ° is 20916, α=
135 ° of slope surface water dropper number of grids are 20430.
Step S23 defines boundary condition: for example, as shown in figure 4, the net of the liquid stream model with α=90 ° section water dropper
Lattice divide and the result 400 of boundary definition；As shown in figure 5, with α=135 ° section water dropper liquid stream model grid dividing and
The result 500 of boundary definition；When α=90 °, definition entrance boundary is speed entrance 410, and outlet border is set as speed outlet
420；When α=135 °, definition entrance boundary is speed entrance 510, and outlet border is set as speed outlet 520；Other boundaries are fixed
Justice is wall surface boundary.
Step S24 exports Mesh file.
Step S30 carries out numerical value calculating to liquid stream model 300, to obtain liquid stream mould according to grid dividing and boundary definition
Drip irrigation pipe inlet flow rate, interior edge column type water dropper exit velocity and drip irrigation pipe exit velocity under the conditions of type.
In step s 30, due to being present in, the liquid stream inside drip irrigation pipe belongs to continuously and incompressible fluid, flowing follow
Physics law of conservation, fluid temperature variation is small, and heat exchange amount is ignored.Governing equation includes as shown in formula 2-1
Continuity equation:
In formula: ρ is fluid density, unit: kgm-3；T is time, unit: s；U, v and w is velocity vector in x, y and z
The component in direction, unit: ms-1.It specifically, include following with the method that FLUENT software carries out numerical value calculating to liquid stream model
Step:
Step S31: importing the Mesh file in above-mentioned steps S24, checks simultaneously scaling grid.
Step S32: determining and select separate type solver, before the solution convergence obtained by calculating, will carry out more wheel iteration.Because of liquid stream
It will be filled with whole drip irrigation pipe and its emitter flow channel, therefore disregard gravity influence.
Step S33: computation model is determined.If simulation belongs to non-multiphase flow, without multiphase stream calculation；General liquid
Flowing, does not consider to conduct heat.Standard k-ε model may be selected in turbulence model, in which:
Tubulence energy equation (k equation) are as follows:
Dissipative shock wave equation (ε equation) are as follows:
In formula: GkFor the generating item of tubulence energy k caused by average velocity gradient:
In standard k-ε model, according to the recommendation of Launder etc. and later experimental verification, correlation model constant is taken
Value are as follows:
σk=1.0, σ ε=1.3, C1ε=1.44, C2ε=1.92, Cμ=0.09 (2-5)
Wherein for formula (2-1) into formula (2-5), ρ is fluid density, unit: kgm-3。
Step S34: definition material, conditions setting.Model is defined as liquid.A specific implementation according to the present invention
Example, under 0.105MPa pressure condition, which obtains drip irrigation pipe inlet flow rate 0.048m/s, and (runner enters for water dropper outlet
Mouthful) flow velocity 0.659m/s, drip irrigation pipe exit velocity 0.043m/s.
Step S35: starting to carry out data calculating and open residual error monitor curve, changed to observe to calculate items and restrain
Journey.
Step S40 judges the trickle irrigation efficiency under liquid stream model 300 according to the obtained calculated result of step S30.In step
In rapid S40, according to the obtained calculated result of step S30, judge angle initialization for the trickle irrigation efficiency under the liquid stream model 300 of α.
Further, the interior edge column type water dropper of embodiment is connected section with trickle irrigation inside pipe wall according to a second aspect of the present invention
Structural optimization method, can with the following steps are included:
Step S50, changes the α within the scope of 90 °~150 °, and repeating said steps S10 is obtained to the step S40
The trickle irrigation efficiency under different angle.
For example, as shown in Figure 6 and Figure 7, taking the α respectively is the 90 ° and 135 ° trickle irrigation compared under different angle effects
Rate obtains the angle so that in the case of the trickle irrigation efficiency highest.
Output has the speed vector figure 600 of the liquid stream model of α=90 ° section water dropper, 610 tables of liquid stream vector respectively
Show, as shown in Figure 6；With the speed vector figure 700 of the liquid stream model with α=135 ° section water dropper, 710 tables of liquid stream vector
Show, as shown in Figure 7.Wherein arrow is oriented to the direction that flow stream velocity reduces in Fig. 6 and Fig. 7.As seen from Figure 6, in α=90 °
Near the right angle area of section water dropper, i.e. there is low speed whirlpool area in region A, liquid stream, forms whirlpool body, leads to the liquid stream into this region
Middle fine impurities are difficult to be detached from, and increase a possibility that impurity retains in liquid stream, thus a possibility that increasing runner blocking, finally
Uniformity of irrigation water appilcation is caused to reduce；And for the slope surface of α=135 ° section water dropper near, i.e. region B, liquid stream is flat by 135 ° of slope surfaces
Along water dropper constriction cross sectional area is entered, it is vortexed caused by the not formed mutation because of flow section, so that impurity be avoided to deposit, it is ensured that stream
Road is not blocked, and improves uniformity of irrigation water appilcation.
By Fig. 6 and Fig. 7 it is found that in the case where α is 135 °, the trickle irrigation efficiency highest.Thus, it is possible to by interior edge cylinder
The end face of formula water dropper is designed to meet the structure of the situation, i.e., the head and the tail both ends of the described interior edge column type water dropper are formed to have slope
45 ° of degree (being 135 ° corresponding with α) is so that gradually from the head and the tail both ends of the interior edge column type water dropper towards its internal internal diameter
It reduces.
As shown in figure 8, the interior edge column type water dropper of embodiment is connected disconnected with trickle irrigation inside pipe wall according to a third aspect of the present invention
The structure optimization device 800 in face, comprising: liquid stream model creation module 801 is used to create liquid stream model, in liquid stream model in
The angle initialization for inlaying column type water dropper trickle irrigation inside pipe wall opposite with trickle irrigation inside pipe wall linking section is α；Division module 802, with
In to liquid stream model progress grid dividing and boundary definition；Computing module 803, it is fixed according to the grid dividing and boundary
Justice carries out numerical value calculating to the liquid stream model, to obtain the drip irrigation pipe inlet flow rate under the liquid stream Model Condition, described
Interior edge column type water dropper exit velocity and the drip irrigation pipe exit velocity；Judgment module 804, obtains according to computing module
Calculated result, judge the trickle irrigation efficiency under liquid stream model.
As shown in figure 9, the interior edge column type water dropper of embodiment is connected disconnected with trickle irrigation inside pipe wall according to a fourth aspect of the present invention
The structure optimization equipment 900 in face, including processor 901 and memory 902, are stored with computer journey in the memory 902
Sequence instruction, wherein when the computer program instructions are run by the processor so that the processor 901 execute it is following
Step:
Step S10 creates liquid stream model, and interior edge column type water dropper is opposite with trickle irrigation inside pipe wall linking section in liquid stream model
The angle initialization of trickle irrigation inside pipe wall is α；
Step S20 carries out grid dividing and boundary definition to liquid stream model；
Step S30 carries out numerical value calculating to liquid stream model, to obtain liquid stream model according to grid dividing and boundary definition
Under the conditions of drip irrigation pipe inlet flow rate, interior edge column type water dropper exit velocity and drip irrigation pipe exit velocity；
Step S40 judges the trickle irrigation efficiency under liquid stream model according to the obtained calculated result of step S30.
Further, as shown in figure 9, the electronic equipment of the embodiment of the present invention, i.e., interior to inlay in column type water dropper and drip irrigation pipe
The structure optimization equipment 900 of wall linking section further includes network interface 903, input equipment 904, hard disk 905 and display equipment
906。
It can be interconnected by bus architecture between above-mentioned each interface and equipment.It may include any that bus architecture, which can be,
The bus and bridge of the interconnection of quantity.One or more central processing unit (CPU) specifically represented by processor 901, Yi Jiyou
The various circuit connections for one or more memory 902 that memory 902 represents are together.Bus architecture can also will such as
Peripheral equipment, voltage-stablizer are together with the various other circuit connections of management circuit or the like.It is appreciated that bus architecture
For realizing the connection communication between these components.Bus architecture further includes power bus, control in addition to including data/address bus
Bus and status signal bus in addition, these are all it is known in the art, therefore is no longer described in greater detail herein.
The network interface 903 can connect to network (such as internet, local area network), dependency number obtained from network
According to, and can save in a hard disk.
The input equipment 904, can receive operator input various instructions, and be sent to processor 901 for
It executes.The input equipment 904 may include keyboard or pointing device (for example, mouse, trace ball (trackball), sense of touch
Plate or touch screen etc..
The display equipment 906, the result that processor 901 executes instruction acquisition can be shown.
The memory 902, program necessary to running for storage program area and data and processor calculated
The data such as the intermediate result in journey.
It is appreciated that the memory 902 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (ROM),
Programmable read only memory (PROM), Erasable Programmable Read Only Memory EPROM (EPROM), electrically erasable programmable read-only memory
(EEPROM) or flash memory.Volatile memory can be random access memory (RAM), be used as External Cache.Herein
The memory 902 of the device and method of description is intended to include but is not limited to the memory of these and any other suitable type.
In some embodiments, memory 902 stores following element, executable modules or data structures, or
Their subset of person or their superset: operating system 908 and application program 907.
Wherein, operating system 908 include various system programs, such as ccf layer, core library layer, driving layer etc., for real
Existing various basic businesses and the hardware based task of processing.Application program 907 includes various application programs, such as browser
(Browser) etc., for realizing various applied business.Realize that the program of present invention method may be embodied in application program
In.
Above-mentioned processor 901, when calling and executing the application program and data that are stored in the memory 902, specifically
, when can be the program or instruction that store in application program, obtain panoramic picture；The panoramic picture is pre-processed,
Obtain subgraph to be processed；The subgraph to be processed is input in multipath convolutional neural networks, is obtained described to be processed
The further feature figure of subgraph；Pond processing is carried out to the further feature figure；It will be by pondization treated further feature figure
It is input in full link model, by the output of the full link model as the location information after reorientation.
The method that the above embodiment of the present invention discloses can be applied in processor 901, or be realized by processor 901.
Processor 901 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 901 or the instruction of software form.Above-mentioned processing
Device 901 can be general processor, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array
(FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components, may be implemented or
Person executes disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or
Person's processor is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be straight
Connect and be presented as that hardware decoding processor executes completion, or in decoding processor hardware and software module combination executed
At.Software module can be located at random access memory, and flash memory, read-only memory, programmable read only memory or electrically-erasable can
In the storage medium of this fields such as programmable memory, register maturation.The storage medium is located at memory, and processor reads storage
Information in device, in conjunction with the step of its hardware completion above method.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuits (ASIC), number letter
Number processor DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), general processor, controller, microcontroller, microprocessor, other electronics lists for executing herein described function
In member or combinations thereof.
For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein
The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or
It is realized outside processor.
In addition, the embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable storage medium
Matter is stored with computer program, when the computer program is run by processor, so that the processor executes following steps:
Step S10 creates liquid stream model, interior edge column type water dropper described in the liquid stream model and the trickle irrigation inside pipe wall
The angle initialization for being connected the relatively described trickle irrigation inside pipe wall of section is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model according to the grid dividing and boundary definition, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the trickle irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model according to the obtained calculated result of step S30.
In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other
Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention
Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. edge column type water dropper is connected the structural optimization method of section with trickle irrigation inside pipe wall in a kind of, which is characterized in that including with
Lower step:
Step S10, creates liquid stream model, and interior edge column type water dropper described in the liquid stream model is connected with the trickle irrigation inside pipe wall
The angle initialization of the relatively described trickle irrigation inside pipe wall of section is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model, described in obtaining according to the grid dividing and boundary definition
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation pipe go out under liquid stream Model Condition
Mouth flow velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model, compares according to the obtained calculated result of step S30
The trickle irrigation efficiency under different angle α and angle when obtaining the trickle irrigation efficiency highest.
2. structural optimization method as described in claim 1, which is characterized in that further include following steps:
Step S50, changes the α within the scope of 90 °~150 °, and repeating said steps S10 obtains difference to the step S40
The trickle irrigation efficiency under angle.
3. structural optimization method as claimed in claim 2, which is characterized in that take respectively the α be 90 °, 120 °, 135 °, with
And 150 °, compare the trickle irrigation efficiency under different angle to obtain so that the angle in the case of the trickle irrigation efficiency highest
Degree.
4. structural optimization method as claimed in claim 2, which is characterized in that
In the step S10, the liquid stream model is created with Auto-CAD software, and result is exported as into ACIS formatted file,
In the step S20, the grid dividing and boundary definition are carried out to the liquid stream model with GAMBIT software,
In the step S30, numerical value calculating is carried out to the liquid stream model with FLUENT software.
5. edge column type water dropper is connected the structure optimization device of section with trickle irrigation inside pipe wall in a kind of characterized by comprising
Liquid stream model creation module is used to create liquid stream model, interior edge column type water dropper and institute described in the liquid stream model
The angle initialization for stating the trickle irrigation inside pipe wall linking relatively described trickle irrigation inside pipe wall of section is α；
Division module, for carrying out grid dividing and boundary definition to the liquid stream model；
Computing module carries out numerical value calculating to the liquid stream model, to obtain according to the grid dividing and boundary definition
State the drip irrigation pipe inlet flow rate under liquid stream Model Condition, the interior edge column type water dropper exit velocity and the drip irrigation pipe
Exit velocity；
Judgment module judges the trickle irrigation efficiency under the liquid stream model according to the calculated result that the computing module obtains, than
The trickle irrigation efficiency under more different angle [alpha]s and angle when obtaining the trickle irrigation efficiency highest.
6. edge column type water dropper is connected the structure optimization equipment of section with trickle irrigation inside pipe wall in a kind of characterized by comprising
Processor；And memory, it is stored with computer program instructions in the memory,
Wherein, when the computer program instructions are run by the processor, so that the processor executes following steps:
Step S10, creates liquid stream model, and interior edge column type water dropper described in the liquid stream model is connected with the trickle irrigation inside pipe wall
The angle initialization of the relatively described trickle irrigation inside pipe wall of section is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model, described in obtaining according to the grid dividing and boundary definition
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation pipe go out under liquid stream Model Condition
Mouth flow velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model, compares according to the obtained calculated result of step S30
The trickle irrigation efficiency under different angle α and angle when obtaining the trickle irrigation efficiency highest.
7. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
Sequence, when the computer program is run by processor, so that the processor executes following steps:
Step S10 creates liquid stream model, and interior edge column type water dropper is opposite with trickle irrigation inside pipe wall linking section in the liquid stream model
The angle initialization of the trickle irrigation inside pipe wall is α；
Step S20 carries out grid dividing and boundary definition to the liquid stream model；
Step S30 carries out numerical value calculating to the liquid stream model, described in obtaining according to the grid dividing and boundary definition
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation pipe go out under liquid stream Model Condition
Mouth flow velocity；
Step S40 judges the trickle irrigation efficiency under the liquid stream model, compares according to the obtained calculated result of step S30
The trickle irrigation efficiency under different angle α and angle when obtaining the trickle irrigation efficiency highest.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284389A (en) * | 2011-05-27 | 2011-12-21 | 中国农业科学院农田灌溉研究所 | Anti-blockage drip irrigation douche |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671782B (en) * | 2012-05-17 | 2014-08-27 | 上海茵能节能环保科技有限公司 | Embedded type reverse-filtering and anti-blocking irrigation emitter and trickle irrigation pipeline |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284389A (en) * | 2011-05-27 | 2011-12-21 | 中国农业科学院农田灌溉研究所 | Anti-blockage drip irrigation douche |
Non-Patent Citations (2)
| Title |
|---|
| Advanced methods to develop drip emitters with new channel types;Qingsong Wei 等;《Applied Engineering in Agriculture》;20060331;第22卷(第2期);第243-249页 |
| 滴灌施肥对滴头抗堵塞性能及系统均匀度影响试验研究;王心阳 等;《中国农村水利水电》;20151130(第11期);第1.1、2.3节 |
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