CN107818221A - 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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- CN107818221A CN107818221A CN201711057464.6A CN201711057464A CN107818221A CN 107818221 A CN107818221 A CN 107818221A CN 201711057464 A CN201711057464 A CN 201711057464A CN 107818221 A CN107818221 A CN 107818221A
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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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Abstract
The present invention provides edge column type water dropper, structural optimization method, device and equipment in a kind of, and the head and the tail both ends of the interior edge column type water dropper are formed as having the predetermined gradient with so that being gradually reduced towards its internal internal diameter from the head and the tail both ends of the interior edge column type water dropper.The structural optimization method for being connected section with drip irrigation inside pipe wall by the interior edge column type water dropper of the embodiment of the present invention is internally inlayed column type water dropper and optimized, and according to the gradient at the head and the tail both ends that column type water dropper is inlayed in optimum results selection suitably, so that liquid stream smooth-going enters water dropper constriction cross sectional area, it will not be formed and be vortexed caused by flow section is mutated, so as to avoid impurity from depositing.
Description
Technical field
The present invention relates to irrigating and drip irrigation technique field, more particularly to inlayed in one kind column type water dropper, its with drip irrigation pipe
Wall is connected structural optimization method, device, equipment and the computer-readable recording medium of section.
Background technology
Drip 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, and its performance quality directly affects the irrigation uniformity of system, filled
Irrigate efficiency, water-saving ability and system lifetim etc..At present, the water dropper in general interior edge column type runner drip irrigation pipe, its head and the tail
Section intersects vertically with drip irrigation inside pipe wall, causes flow section in pipe to be mutated, the adjustment of liquid stream internal structure, flow velocity redistribution,
Streamline bending produces vortex, and the most followability of fine particle carried secretly in irrigation water is good, and now particle will be involved in vortex
Do shuttling movement；Pour water after stopping, particle is deposited in drip irrigation pipe；Treat that next watering period starts moment, liquid stream will be unexpected
Full of whole piece 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, sediment outflow ability, and a large amount of particles pour in blocks runner by moment, ultimately results in
Uniformity of irrigation water appilcation reduces, and causes plant growth inconsistent and the underproduction, replacing pipeline can increase investment and labour.Block and ask at present
Topic is to restrict a principal element of Drip Irrigation Technology Extension and application.
The content of the invention
In view of this, the present invention provides a kind of interior edge column type water dropper, that it is connected the structure of section with drip irrigation inside pipe wall is excellent
Change method, apparatus, equipment and computer-readable recording medium, internally inlay the knot that column type water dropper is connected section with drip irrigation inside pipe wall
Structure optimizes, so as to reduce the possibility that physical clogging occurs for interior edge column type water dropper inner flow passage.
In order to solve the above technical problems, on the one hand, the present invention provides edge column type water dropper, the interior edge column type in a kind of
The head and the tail both ends of water dropper are formed as having the predetermined gradient to cause 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 °.
According to other embodiments of the present invention, the gradient is 45 °.
Second aspect, the embodiment of the present invention provide the structure optimization that interior edge column type water dropper is connected section with drip irrigation inside pipe wall
Method, comprise the following steps：
Step S10, liquid stream model is created, interior edge column type water dropper described in the liquid stream model and the drip irrigation inside pipe wall
The angle initialization for being connected the relatively described drip irrigation inside pipe wall of section is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
According to some embodiments of the present invention, methods described also comprises the following steps：
Step S50, changes the α in the range of 90 °~150 °, and repeating said steps S10 obtains to the step S40
The drip irrigation efficiency under different angle.
According to other embodiments of the present invention, the α is taken respectively as 90 °, 120 °, 135 °, and 150 °, it is more different
The drip irrigation efficiency under angle is to obtain causing the angle in the case of the drip irrigation efficiency highest.
According to the still other embodiments of the present invention, in the step S10, the liquid stream mould is created with Auto-CAD softwares
Type, and result is exported as into ACIS formatted files,
In the step S20, the mesh generation and boundary definition are carried out to the liquid stream model with GAMBIT softwares,
In the step S30, numerical computations are carried out to the liquid stream model with FLUENT softwares.
The third aspect, the embodiment of the present invention provide the structure that a kind of interior edge column type water dropper is connected section with drip irrigation inside pipe wall
Optimize device, including：
Liquid stream model creation module, it is used to create liquid stream model, interior edge column type water dropper described in the liquid stream model
The angle initialization of the drip irrigation inside pipe wall relative with drip irrigation inside pipe wall linking section is α；
Division module, for carrying out mesh generation and boundary definition to the liquid stream model；
Computing module, it carries out numerical computations, to obtain according to the mesh generation and boundary definition to the liquid stream model
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；
Judge module, its result of calculation obtained according to the computing module, judge the drip irrigation effect under the liquid stream model
Rate.
Fourth aspect, the embodiment of the present invention provide the structure that a kind of interior edge column type water dropper is connected section with drip irrigation inside pipe wall
Optimize equipment, including：
Processor；And memory, computer program instructions are stored with the memory,
Wherein, when the computer program instructions are run by the processor so that walked below the computing device
Suddenly：
Step S10, liquid stream model is created, interior edge column type water dropper described in the liquid stream model and the drip irrigation inside pipe wall
The angle initialization for being connected the relatively described drip irrigation inside pipe wall of section is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
5th aspect, the embodiment of the present invention provide a kind of computer-readable recording medium, the computer-readable storage medium
Matter is stored with computer program, when the computer program is run by processor so that the computing device following steps：
Step S10, liquid stream model is created, interior edge column type water dropper described in the liquid stream model and the drip irrigation inside pipe wall
The angle initialization for being connected the relatively described drip irrigation inside pipe wall of section is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
The above-mentioned technical proposal of the present invention one of at least has the advantages that：
It is connected the structural optimization method pair of section with drip irrigation inside pipe wall by the interior edge column type water dropper of the embodiment of the present invention
Interior edge column type water dropper optimizes, and according to the slope at the head and the tail both ends that column type water dropper is inlayed in optimum results selection suitably
The angle of edge column type water dropper drip irrigation inside pipe wall relative with drip irrigation inside pipe wall linking section is so that liquid stream in degree, i.e. selection are suitable
Smooth-going enters water dropper constriction cross sectional area, will not be formed and is vortexed caused by flow section is mutated, so as to avoid impurity from depositing.
Brief description of the drawings
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 drip irrigation inside pipe wall
Schematic flow sheet；
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 drip irrigation inside pipe wall
Drip 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 drip irrigation inside pipe wall
Drip 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 drip irrigation inside pipe wall
Drip 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 drip 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 drip 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 drip irrigation inside pipe wall；
Fig. 9 is the schematic diagram of the electronic equipment of the embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright part of the embodiment, rather than whole embodiments.Based on described embodiments of the invention, ordinary skill
The every other embodiment that personnel are obtained, belongs to the scope of protection of the 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 as having the predetermined gradient with so that gradually contracting towards its internal internal diameter from the head and the tail both ends of interior edge column type water dropper 100
It is small.
Specifically, as shown in figure 1, wherein, arrow is oriented to water (flow) direction, the value of slope is represented with β.With the interior edge circle
Liquid stream can be smoothed out into the constriction cross sectional area of water dropper 100 in the drip irrigation pipe 200 of pillar water dropper 100, will not cause drip irrigation pipe 200
Interior flow section mutation, improves sediment outflow ability to ensure the uniformity poured water.
In some preferred embodiments of the present invention, the predetermined 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.
According to the specific embodiment of the present invention, the predetermined gradient is 45 °.The head and the tail two of interior edge column type water dropper 100
End is formed as that there are 45 ° of predetermined gradients drip irrigation pipe 200 can be made to reach best sediment outflow effect, pours water evenly.
The structure that the interior edge column type water dropper of embodiment is connected section with drip irrigation inside pipe wall according to a second aspect of the present invention is excellent
Change method, as shown in Fig. 2 comprising the following steps：
Step S10, liquid stream model 300 is created, interior edge column type water dropper is connected disconnected with drip irrigation inside pipe wall in liquid stream model 300
Face is α with respect to the angle initialization of drip irrigation inside pipe wall
Specifically, α represents the angle of interior edge column type water dropper drip irrigation inside pipe wall relative with drip irrigation inside pipe wall linking section, should
Angle is identical with the predetermined gradient β at the head and the tail both ends of interior edge column type water dropper supplementary angle.
Further, interior edge column type water dropper is connected the structural optimization method of section with drip irrigation inside pipe wall also including following step
Suddenly：Step S50, change α, repeat step S10 to step S40 in the range of 90 °~150 °, obtain the drip irrigation effect under different angle
Rate.α values are multiple in 90 °~150 °, and the α of each different values drip irrigation pipe is calculated, optimal to choose
Drip irrigation tubular construction.
According to some specific embodiments of the present invention, α is taken respectively as 90 °, 120 °, 135 °, and 150 °, more different angles
The lower drip irrigation efficiency of degree is to obtain so that angle [alpha] in the case of drip irrigation efficiency highest.
In other embodiments of the present invention, in step S10, liquid stream model is created with Auto-CAD softwares, and will knot
Fruit exports as ACIS formatted files, and in step S20, mesh generation and boundary definition are carried out to liquid stream model with GAMBIT softwares,
In step S30, numerical computations are carried out to liquid stream model with FLUENT softwares.
Specifically, the liquid stream model 300 created in step S10 is as shown in Figure 3.
Step S20, mesh generation and boundary definition are carried out to liquid stream model 300
According to some embodiments of the present invention, step S20 can include following sub-step：
Step S21, ACIS files are imported into GAMBIT softwares.
Step S22, grid division：For example, Tri (triangle) grid cell, Pave can be selected to all liquid stream models 300
(establishment unstrctured grid) trellis-type, grid spacing judged using Interval Size, is worth for 0.5, last Apply is created
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 domatic water dropper number of grids are 20430.
Step S23, define boundary condition：For example, the as shown in figure 4, 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, the mesh generation of the liquid stream model with α=135 ° section water dropper and
The result 500 of boundary definition；When α=90 °, definition entrance boundary is speed entrance 410, and outlet border is set to speed outlet
420；When α=135 °, definition entrance boundary is speed entrance 510, and outlet border is set to speed outlet 520；Determine on other borders
Justice is wall border.
Step S24, export Mesh files.
Step S30, according to mesh generation and boundary definition, numerical computations are carried out to liquid stream model 300, to obtain liquid stream mould
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, continuous and incompressible fluid is belonged to due to being present in the liquid stream inside drip irrigation pipe, flowing follows
Physics law of conservation, fluid temperature change is small, and heat exchange amount is ignored.Governing equation is included as shown in formula 2-1
Continuity equation：
In formula：ρ is fluid density, unit：kg·m-3；T is the time, unit：s；U, v and w is velocity in x, y and z
The component in direction, unit：m·s-1.Specifically, the method for numerical computations is carried out to liquid stream model with FLUENT softwares including following
Step：
Step S31：The Mesh files imported in above-mentioned steps S24, check simultaneously scaling grid.
Step S32：It is determined that selection separate type solver, before solution convergence obtained by calculating, will carry out more wheel iteration.Because of liquid stream
Whole piece drip irrigation pipe and its emitter flow channel are will be filled with, therefore disregards gravity influence.
Step S33：Determine computation model.If simulation belongs to non-multiphase flow, without multiphase stream calculation；In general liquid
Flowing, does not consider to conduct heat.Standard k-ε model may be selected in turbulence model, wherein：
Tubulence energy equation (k equations) is：
Dissipative shock wave equation (ε equations) is：
In formula：GkFor the generating item of tubulence energy k caused by average velocity gradient：
In standard k-ε model, according to Launder etc. recommendation and later experimental verification, correlation model constant takes
It is worth and is：
σk=1.0, σ ε=1.3, C1ε=1.44, C2ε=1.92, Cμ=0.09 (2-5)
Wherein formula (2-1) is into formula (2-5), and ρ is fluid density, unit：kg·m-3。
Step S34：Definition material, conditions setting.Model definition is liquid.According to one of present invention specific implementation
Example, under 0.105MPa pressure conditions, the experimental calculation 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：Proceed by data to calculate and open residual error monitor curve, changed to observe to calculate items and restrain
Journey.
Step S40, according to the result of calculation obtained by step S30, judge the drip irrigation efficiency under liquid stream model 300.In step
In rapid S40, according to the result of calculation obtained by step S30, judge angle initialization for the drip irrigation efficiency under α liquid stream model 300.
Further, the interior edge column type water dropper of embodiment is connected section with drip irrigation inside pipe wall according to a second aspect of the present invention
Structural optimization method, can also comprise the following steps：
Step S50, changes the α in the range of 90 °~150 °, and repeating said steps S10 obtains to the step S40
The drip irrigation efficiency under different angle.
For example, as shown in Figure 6 and Figure 7, it is the 90 ° and 135 ° drip irrigation compared under different angle effects to take the α respectively
Rate, obtain causing the angle in the case of the drip irrigation efficiency highest.
The speed vector figure 600 of liquid stream model of the output with α=90 ° section water dropper respectively, 610 tables of liquid stream vector
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.Arrow is oriented to the direction of flow stream velocity reduction in wherein 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, causes the liquid stream into this region
Middle fine impurities are difficult to depart from, and increase the possibility that impurity in liquid stream retains, so as to increase the possibility of runner blocking, finally
Uniformity of irrigation water appilcation is caused to reduce；And for α=135 ° section water dropper it is domatic near, i.e. region B, liquid stream is domatic flat by 135 °
Along water dropper constriction cross sectional area is entered, do not formed and be vortexed caused by flow section is mutated, so as to avoid impurity from depositing, it is ensured that stream
Road is not blocked, and improves uniformity of irrigation water appilcation.
From Fig. 6 and Fig. 7, in the case where α is 135 °, the drip irrigation efficiency highest.Thus, it is possible to by interior edge cylinder
The end face of formula water dropper is designed to the structure for meeting the situation, i.e., the head and the tail both ends of described interior edge column type water dropper are formed as with slope
45 ° of degree (being 135 ° corresponding with α) is gradual towards its internal internal diameter from the head and the tail both ends of the interior edge column type water dropper to cause
Reduce.
As shown in figure 8, the interior edge column type water dropper of embodiment is connected disconnected with drip irrigation inside pipe wall according to a third aspect of the present invention
The structure optimization device 800 in face, including：Liquid stream model creation module 801, it is used to creating liquid stream model, in liquid stream model in
The angle initialization for inlaying column type water dropper drip irrigation inside pipe wall relative with drip irrigation inside pipe wall linking section is α；Division module 802, with
In to liquid stream model progress mesh generation and boundary definition；Computing module 803, it determines according to the mesh generation and border
Justice, numerical computations are carried out 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；Judge module 804, it is obtained according to computing module
Result of calculation, judge the drip irrigation efficiency under liquid stream model.
As shown in figure 9, the interior edge column type water dropper of embodiment is connected disconnected with drip 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, computer journey is stored with the memory 902
Sequence instructs, wherein, when the computer program instructions are run by the processor so that the processor 901 performs following
Step：
Step S10, liquid stream model is created, interior edge column type water dropper is relative with drip irrigation inside pipe wall linking section in liquid stream model
The angle initialization of drip irrigation inside pipe wall is α；
Step S20, mesh generation and boundary definition are carried out to liquid stream model；
Step S30, according to mesh generation and boundary definition, numerical computations are carried out to liquid stream model, to obtain liquid stream model
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, according to the result of calculation obtained by step S30, judge the drip irrigation efficiency under liquid stream model.
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 also includes network interface 903, input equipment 904, hard disk 905 and display device
906。
It can be interconnected between above-mentioned each interface and equipment by bus architecture.Bus architecture can be included arbitrarily
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 of one or more memory 902 that memory 902 represents are electrically connected to together.Bus architecture can also will such as
The various other of ancillary equipment, voltage-stablizer and management circuit or the like are electrically connected to together.It is appreciated that bus architecture
For realizing the connection communication between these components.Bus architecture is in addition to including data/address bus, in addition to power bus, control
Bus and status signal bus in addition, these are all it is known in the art, being therefore no longer described in greater detail herein.
The network interface 903, network (such as internet, LAN) can be connected to, dependency number is obtained from network
According to, and can preserve in a hard disk.
The input equipment 904, can receive operating personnel input various instructions, and be sent to processor 901 for
Perform.The input equipment 904 can include keyboard or pointing device (for example, mouse, trace ball (trackball), sense of touch
Plate or touch-screen etc..
The display device 906, the result that the execute instruction of processor 901 obtains can be shown.
The memory 902, program and data necessary to being run for storage program area, 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,
Or it may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (ROM),
Programmable read only memory (PROM), Erasable Programmable Read Only Memory EPROM (EPROM), Electrically Erasable Read Only Memory
Or flash memory (EEPROM).Volatile memory can be random access memory (RAM), and it is used as External Cache.Herein
The memory 902 of the apparatus and method of description is intended to the memory of including but not limited to these and any other suitable type.
In some embodiments, memory 902 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 908 and application program 907.
Wherein, operating system 908, comprising various system programs, such as ccf layer, core library layer, driving layer etc., for reality
The hardware based task of existing various basic businesses and processing.Application program 907, include 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 performing the application program and data that are stored in the memory 902, specifically
, when can be the program or instruction that are stored in application program, obtain panoramic picture；The panoramic picture is pre-processed,
Obtain pending subgraph；The pending subgraph is input in multipath convolutional neural networks, obtained described pending
The further feature figure of subgraph；Pond processing is carried out to the further feature figure；By the further feature figure after pondization processing
It is input in full link model, using the output of the full link model as the positional information after reorientation.
The method that the above embodiment of the present invention discloses can apply in processor 901, or be realized by processor 901.
Processor 901 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, 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), application specific integrated circuit (ASIC), ready-made programmable gate array
(FPGA) either other PLDs, discrete gate or transistor logic, discrete hardware components, it is possible to achieve or
Person performs disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or
Person's processor can also be any conventional processor etc..The step of method with reference to disclosed in the embodiment of the present invention, can be straight
Connect and be presented as that hardware decoding processor performs completion, or performed with the hardware in decoding processor and software module combination
Into.Software module can be located at random access memory, and flash memory, read-only storage, programmable read only memory or electrically-erasable can
In the ripe storage medium in this areas such as programmable memory, register.The storage medium is located at memory, and processor reads storage
Information in device, with reference to the step of its hardware completion above method.
It is understood that embodiments described herein can use hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuits (ASIC), numeral 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 performing herein described function
In member or its combination.
Realize, can be realized herein by performing the module (such as process, function etc.) of function described herein for software
Described technology.Software code is storable in memory and passes through computing device.Memory can within a processor or
Realized outside processor.
In addition, the embodiment of the present invention additionally provides a kind of computer-readable recording medium, the computer-readable storage medium
Matter is stored with computer program, when the computer program is run by processor so that the computing device following steps：
Step S10, liquid stream model is created, interior edge column type water dropper described in the liquid stream model and the drip irrigation inside pipe wall
The angle initialization for being connected the relatively described drip irrigation inside pipe wall of section is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, to obtain
The drip irrigation pipe inlet flow rate, the interior edge column type water dropper exit velocity and the drip irrigation under the liquid stream Model Condition
Pipe exit velocity；
Step S40, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
In several embodiments provided herein, it should be understood that disclosed method and apparatus, can be by other
Mode realize.For example, device embodiment described above is only schematical, for example, the division of the unit, only
For a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine
Or another system is desirably integrated into, or some features can be ignored, or do not perform.Another, shown or discussed phase
Coupling or direct-coupling or communication connection between mutually can be by some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection, can be electrical, mechanical or other forms.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That the independent physics of unit includes, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server, or network equipment etc.) performs receiving/transmission method described in each embodiment of the present invention
Part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various to store
The medium of program code.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. edge column type water dropper in a kind of, it is characterised in that the head and the tail both ends of the interior edge column type water dropper are formed as with pre-
The fixed gradient is to be gradually reduced towards its internal internal diameter from the head and the tail both ends of the interior edge column type water dropper.
2. edge column type water dropper in as claimed in claim 1, it is characterised in that the gradient is 30 °~60 °.
3. edge column type water dropper in as claimed in claim 2, it is characterised in that the gradient is 45 °.
4. a kind of interior edge column type water dropper is connected the structural optimization method of section with drip irrigation inside pipe wall, it is characterised in that including with
Lower step：
Step S10, liquid stream model is created, interior edge column type water dropper is connected with the drip irrigation inside pipe wall described in the liquid stream model
The angle initialization of the relatively described drip irrigation inside pipe wall of section is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, with described in acquisition
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, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
5. structural optimization method as claimed in claim 4, it is characterised in that also comprise the following steps：
Step S50, changes the α in the range of 90 °~150 °, and repeating said steps S10 obtains difference to the step S40
The drip irrigation efficiency under angle.
6. structural optimization method as claimed in claim 5, it is characterised in that the α is taken respectively as 90 °, 120 °, 135 °, with
And 150 °, compare the drip irrigation efficiency under different angle with obtain cause the drip irrigation efficiency highest in the case of the angle
Degree.
7. structural optimization method as claimed in claim 5, it is characterised in that
In the step S10, the liquid stream model is created with Auto-CAD softwares, and result is exported as into ACIS formatted files,
In the step S20, the mesh generation and boundary definition are carried out to the liquid stream model with GAMBIT softwares,
In the step S30, numerical computations are carried out to the liquid stream model with FLUENT softwares.
8. a kind of interior edge column type water dropper is connected the structure optimization device of section with drip irrigation inside pipe wall, it is characterised in that including：
Liquid stream model creation module, it 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 drip irrigation inside pipe wall linking relatively described drip irrigation inside pipe wall of section is α；
Division module, for carrying out mesh generation and boundary definition to the liquid stream model；
Computing module, it carries out numerical computations, to obtain according to the mesh generation and boundary definition to the liquid stream model
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；
Judge module, its result of calculation obtained according to the computing module, judge the drip irrigation efficiency under the liquid stream model.
9. a kind of interior edge column type water dropper is connected the structure optimization equipment of section with drip irrigation inside pipe wall, it is characterised in that including：
Processor；And memory, computer program instructions are stored with the memory,
Wherein, when the computer program instructions are run by the processor so that the computing device following steps：
Step S10, liquid stream model is created, interior edge column type water dropper is connected with the drip irrigation inside pipe wall described in the liquid stream model
The angle initialization of the relatively described drip irrigation inside pipe wall of section is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, with described in acquisition
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, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
10. a kind of computer-readable recording medium, it is characterised in that the computer-readable recording medium storage has computer journey
Sequence, when the computer program is run by processor so that the computing device following steps：
Step S10, liquid stream model is created, interior edge column type water dropper is relative with drip irrigation inside pipe wall linking section in the liquid stream model
The angle initialization of the drip irrigation inside pipe wall is α；
Step S20, mesh generation and boundary definition are carried out to the liquid stream model；
Step S30, according to the mesh generation and boundary definition, numerical computations are carried out to the liquid stream model, with described in acquisition
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, according to the result of calculation obtained by the step S30, judge the drip irrigation efficiency under the liquid stream model.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057464.6A CN107818221B (en) | 2017-11-01 | 2017-11-01 | Interior edge column type water dropper, structural optimization method, device and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057464.6A CN107818221B (en) | 2017-11-01 | 2017-11-01 | Interior edge column type water dropper, structural optimization method, device and equipment |
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| CN107818221B CN107818221B (en) | 2019-02-19 |
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Citations (2)
| 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 |
| US20150136686A1 (en) * | 2012-05-17 | 2015-05-21 | Shanghai Yine Green Technology Co., Ltd. | Embedded Type, Inverted-filtering and Anti-Clogged Emitter and Drip Irrigation Pipeline |
-
2017
- 2017-11-01 CN CN201711057464.6A patent/CN107818221B/en active Active
Patent Citations (2)
| 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 |
| US20150136686A1 (en) * | 2012-05-17 | 2015-05-21 | Shanghai Yine Green Technology Co., Ltd. | Embedded Type, Inverted-filtering and Anti-Clogged Emitter and Drip Irrigation Pipeline |
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| Title |
|---|
| QINGSONG WEI 等: "Advanced methods to develop drip emitters with new channel types", 《APPLIED ENGINEERING IN AGRICULTURE》 * |
| 王心阳 等: "滴灌施肥对滴头抗堵塞性能及系统均匀度影响试验研究", 《中国农村水利水电》 * |
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