CN115906718B - CFD system of rotary machine - Google Patents
CFD system of rotary machine Download PDFInfo
- Publication number
- CN115906718B CN115906718B CN202310221517.2A CN202310221517A CN115906718B CN 115906718 B CN115906718 B CN 115906718B CN 202310221517 A CN202310221517 A CN 202310221517A CN 115906718 B CN115906718 B CN 115906718B
- Authority
- CN
- China
- Prior art keywords
- setting
- cfd
- solver
- calculation
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a rotary machine CFD system which is characterized by comprising a fluid medium library, a CFD solver, a preprocessing module, a solver setting module, a convergence setting module and a post-processing module; the fluid medium storage stores attribute parameters of various fluid media; the solver setting module is used for acquiring preconditions and basic data required by calculation of the CFD solver; the preprocessing module is used for establishing a geometric model of the rotary machine according to the solved problem, extracting fluid domains according to the pre-condition, and then generating CFD calculation grids corresponding to each fluid domain; the CFD solver is used for carrying out fluid simulation calculation on the gridded fluid domain and sending a calculation result to the post-processing module; the post-processing module is used for acquiring flow field distribution conditions according to calculation results, extracting flow field information at different positions according to requirements, verifying whether the simulation purpose is achieved or not, and optimizing structural parameters of the rotary mechanical geometric model.
Description
Technical Field
The invention belongs to the technical fields of computer software and fluid mechanics, and particularly relates to a rotary machine CFD system.
Background
CFD (Computational Fluid Dynamics), computational fluid dynamics. The method is a product combining numerical mathematics and computer science, is a cross subject with strong vitality, mainly uses an electronic computer, and applies various discretized mathematical methods to carry out numerical experiments, computer simulation and analysis research on various problems of fluid mechanics so as to solve various practical problems.
CFD replaces fluid dynamics experimental equipment with huge cost to a great extent from the basic physical theorem, has huge influence in scientific research and engineering technology, is a powerful three-dimensional research field internationally at present, is a core and important technology for carrying out heat transfer, mass transfer, momentum transfer and combustion, multiphase flow and chemical reaction research, and is widely applied to various engineering fields such as aerospace design, automobile design, turbine design, semiconductor design and the like.
At present, simulation software mainly adopted in engineering application of rotary machinery and scientific research of colleges and universities mainly comprises foreign commercial software such as ANSYS, start-CCM+, sim meric MP+, numeca, openfoam and the like, and domestic CFD software of the rotary machinery with independent intellectual property rights is needed.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a rotary machine CFD system which is used for filling the blank of domestic rotary machine professional CFD software.
The technical scheme of the invention is as follows:
the CFD system of the rotary machine is characterized by comprising a fluid medium library, a CFD solver, a preprocessing module, a solver setting module, a convergence setting module and a post-processing module;
the fluid medium library is used for storing attribute parameters of various fluid media, and each attribute parameter corresponds to a physical parameter and a calculation formula of one fluid medium;
the solver setting module is used for acquiring preconditions and basic data required by the calculation of the CFD solver;
the preprocessing module is used for establishing a rotary mechanical geometric model according to the solved problem and extracting a fluid domain according to the pre-condition; then calculating and solving the requirements of the turbulence model used on the grid to generate CFD calculation grids corresponding to each fluid domain;
the convergence setting module is used for setting the calculation termination condition of the CFD solver;
the CFD solver is used for carrying out fluid simulation calculation on the gridded fluid domain and sending a calculation result to the post-processing module;
the post-processing module is used for acquiring flow field distribution conditions according to the calculation result, extracting flow field information at different positions according to the need and verifying whether the simulation purpose is achieved or not; and optimizing the structural parameters of the geometric model of the rotary machine according to the calculation result.
Further, the setting content of the solver setting module includes: fluid medium setting, boundary condition setting, initialization setting, option setting, multi-block setting, CFD starting setting and multi-working condition setting;
the fluid medium setting is used for selecting a fluid medium according to the simulation object and selecting a corresponding calculation formula according to the selected fluid medium; the calculation formula comprises a balance equation, a thermal balance equation and a transportation equation;
the boundary condition setting is used for setting the calculation type and specific condition parameters of the inlet and outlet of the fluid domain according to the actual working condition;
the initialization setting is used for estimating an initial value of iterative computation in the whole CFD numerical simulation process according to the set boundary condition;
the option setting is used for setting corresponding boundary condition models for the inlet and the outlet of the fluid domain;
the multi-block setting is used for selecting compressible and incompressible, space discrete format, merkle preprocessing, global residual error fairing processing, solving precision and storing intermediate results;
the start CFD setting is used for setting operation parameters;
the multi-working condition setting is used for operating a plurality of calculation working conditions at one time by adjusting the rotating speed working condition point and the boundary type working condition point.
Further, the setting content of the solver setting module further comprises solver option setting; the solver option is used for selecting turbulence models, wall surface processing modes, time propulsion formats and decomposition matrix free parameters adopted by analysis and calculation; the operation parameters comprise steady or unsteady state, solver priority, whether to draw a residual curve during solving and timing to start operation time.
Further, the optional turbulence model in the solver option settings includes: baldwin-Lomax model, spark-Allmaras 1-equality model, inviscid Euler solution, lamini solution, k-epsilon 2-equality model, k-omega 2-equality model, SST 2-equality model; the selectable wall surface treatment modes comprise logarithmic law hub/casing shear stress, non-viscous hub, non-viscous casing, non-viscous hub/casing and laminar flow hub/casing shear stress; alternative time-marching formats are raw B-to-B3D, second order Dragon's library tower, fourth order Dragon's library tower, implicit.
Further, in the boundary condition setting, the setting of the inlet boundary comprises total pressure or flow, total temperature or total enthalpy and speed direction; the setting of the outlet boundary includes the total pressure, pressure ratio or differential of the flow or casing, the total pressure, pressure ratio or differential in the lobes, the total pressure, pressure ratio or differential of the hub.
Further, the starting CFD setting further includes performing a CPU parallel mode setting, where the CPU parallel modes include three modes: pure MPI mode, pure OpenMP mode, a hybrid of MPI and OpenMP mode.
Further, the solver setting module further comprises a multiple grid setting for accelerating the convergence calculation of the CFD solver by interpolation reconstruction between grids of different scales using a multiple grid method; the multiple grid arrangement comprises 0-N layers according to the thickness degree of grids, wherein 0 represents that a multiple grid method is not used, the layers gradually increase from 1-N to the size of the grids, and the grids become thicker.
Further, a commercial fluid medium library interface is included for importing other commercial fluid medium libraries.
Further, a commercial CFD solver interface is also included for importing other commercial CFD solvers.
Further, the method also comprises a result export interface for exporting the solving calculation result.
The invention has the following advantages:
1. in the preprocessing module, the semi-automatic structured grid division can be used for carrying out topology segmentation on the rotary mechanical model quickly and efficiently, the background captures geometric dimension automatic distribution points, and the high-quality grid is generated quickly.
2. In the fluid medium setting of the solver setting module and in the commercial fluid medium library interface of the solver setting module, a large amount of real fluid media are added to the fluid material library, so that the method can be applied to wider engineering fields, and the calculation is more fit with the actual situation.
3. When the boundary condition of the solver setting module is set, the boundary condition and the solving related parameters can be automatically set, and meanwhile, local parameter modification can be performed through user-defined setting, so that the method has strong convenience and flexibility.
4. In the multiple grid setting of the solver setting module and the Merkle preprocessing setting of the multiple block setting, the multiple grid acceleration convergence and the Merkle preprocessing are adopted to greatly improve the solving efficiency, so that the calculation time can be greatly saved compared with the common quotient, the calculation precision is higher, and the residual error can be reduced to more than ten orders.
5. In the multi-working condition setting of the solver setting module, a plurality of calculation working conditions can be started at one time by using the multi-working condition interface simple setting, so that the method is time-saving, labor-saving, efficient and convenient.
Drawings
Fig. 1 is a schematic diagram of a rotary machine CFD system of the invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are given by way of illustration only and are not intended to limit the scope of the invention.
A rotary machine CFD system comprising: a fluid medium library, a CFD solver, a preprocessing module, a solver setting module, a convergence setting module and a post-processing module;
the fluid medium library comprises a plurality of attribute parameters of real fluid media, and each attribute parameter corresponds to a physical parameter and a calculation formula (such as a balance equation, a heat balance equation and a transport equation) of one fluid medium; the fluid medium includes, but is not limited to, a common fluid medium such as a refrigerant, an alkane, a fuel, a common gas, water, and the like.
The solver setting module is used for acquiring some preconditions and basic data required by the calculation of the solver. The configuration file can be set through an interface menu or can be edited and set directly.
The preprocessing module is used for building a three-dimensional rotary mechanical geometric model according to the solved problem, reasonably simplifying the geometric model according to actual calculation conditions and grid generation difficulty, generating CFD calculation grids by analyzing the requirements of turbulence models used for subsequent calculation solution on the grids, and finally displaying grid images to users through the interface module. Simplifying refers to smoothing and parameterizing the geometric model; smoothing refers to trowelling small depressions and sharp corners of a geometric surface, and aims to reduce mapping noise, reduce calculated amount and reduce computer memory consumption; parameterization is to interface the data format of the mesh generation module, it is also possible to change the geometry.
The convergence setting module is used for controlling the termination condition of the calculation of the whole solver, and can select whether to stop the calculation by reducing the residual error to a certain order of magnitude or reducing the mass flow error to be smaller than a certain value, and the calculation is stopped once the solution reaches the self-defined set standard.
The CFD solver is used for carrying out actual fluid simulation calculation on the gridded fluid domain, and a required algorithm model is set and selected in a solver setting module; the CFD solver internally comprises a physical and mathematical algorithm framework of a bottom layer, and the physical and mathematical algorithm framework is used for carrying out mathematical modeling on a flow field so as to carry out a series of simulation calculations to obtain a calculation result.
The post-processing module is used for analyzing the flow field distribution condition by converting the result into a result cloud image, a vector image, a partial graph and the like, extracting flow field information at different positions according to the need to analyze the researched problem, verifying whether the problem achieves the simulation purpose, generating a corresponding optimization scheme for the structural parameters of the geometric model of the rotary machine according to the simulation result, and simultaneously converting, storing and outputting the calculated result.
Further, the solver setting module includes the following: fluid medium setting, boundary condition setting, initialization setting, option setting; setting a used CFD solver, a solver option setting, a multi-block setting, a start CFD setting and a multi-task setting.
Fluid medium arrangement: the method is used for selecting a fluid medium according to a simulation object (the simulation object corresponds to the rotary machine geometric model, the rotary machine geometric model is a water pump model if the simulation object is a water pump, the corresponding fluid medium is water, the rotary machine geometric model is a gas compressor model if the simulation object is a gas compressor, and the corresponding fluid medium is air), and selecting a corresponding calculation balance equation, a thermal balance equation and a transport equation according to the selected fluid medium.
Boundary condition setting: the method is used for setting the calculation type and specific condition parameters of the inlet and outlet of the fluid domain according to the actual working conditions. The actual working conditions are the temperature, air pressure or water pressure of the mechanical working, the rotating speed of the rotor and the like. When the preprocessing module generates the grid, the grid is constructed in all areas belonging to the fluid domain.
Initializing the setting: and estimating an initial value of iterative calculation in the whole CFD numerical simulation process according to the set boundary conditions.
Option setting: the boundary condition model of the inlet and the outlet of the fluid domain can be further set in detail, a data transmission mode is selected for the dynamic and static interaction surfaces, and whether reflection exists on the inlet, the outlet and the dynamic and static interaction surfaces is set.
Solver option settings: the method is used for selecting turbulence models, wall surface processing modes, time advancing formats and decomposition matrix free parameters adopted by analysis and calculation.
And (3) setting a plurality of blocks: the method is used for selecting compressible and incompressible, spatially discrete format, merkle preprocessing, global residual error fairing processing, solving precision and saving intermediate results. Among the spatial discrete formats that may be selected are: center differential, third order windward (AUSM) format, first order windward (AUSM) format. The liquid fluid working medium is generally incompressible, the gas fluid working medium is generally compressible, and the liquid fluid working medium corresponds to different solving equations respectively.
Starting CFD setting: for setting operating parameters: steady or unsteady, solver priority, whether to draw a residual curve when solving, and timing to start running time.
And (3) multi-working condition setting: a plurality of calculation working conditions can be operated at one time by adjusting the rotating speed working condition point and the boundary type working condition point.
Preferably, the turbulence models that can be selected in the solver option settings are: baldwin-Lomax model, spark-Allmaras 1-equality model, inviscid Euler solution, lamini solution, k-epsilon 2-equality model, k-omega 2-equality model, SST 2-equality model; the wall surface processing modes which can be selected include logarithmic law hub/casing shear stress, non-viscous hub, non-viscous casing, non-viscous hub/casing and laminar flow hub/casing shear stress; alternative time-marching formats are raw B-to-B3D, second order longgrid tower, fourth order longgrid tower, implicit (gauss-seidel); at the same time, the free parameters BII, BJJ, BKK of the three directions of the decomposition matrix need to be set.
Further, the solver setting module further comprises multiple grid settings, and can select to use a multiple grid method to accelerate CFD convergence calculation through interpolation reconstruction among grids with different scales;
the multiple grid arrangement can select 0-N layers according to the thickness degree of the grids, 0 means that a multiple grid method is not used, the layers gradually increase from 1-N to mean that the size of the grids is gradually increased, and the grids become thicker. And meanwhile, a circulation strategy between grids of different levels in convergence calculation is selected, wherein the circulation strategy comprises V-type circulation, W-type circulation and FMV-type.
Further, in the boundary condition setting, the inlet boundary of the fluid domain may specify the total pressure or flow, the total temperature or total enthalpy, and the velocity direction; the outlet boundary may specify the total pressure or pressure ratio or pressure differential of one of the three points of flow or casing, in the lobes, in the hub. But is not capable of specifying both inlet and outlet mass flows.
Preferably, in the process of starting CFD setting, a CPU parallel mode setting may be further performed, where there are three types of CPU parallel modes: pure MPI mode, pure OpenMP mode, MPI and OpenMP mixed mode.
Preferably, a rotary machine CFD system further includes a commercial fluid media library interface for importing other commercial fluid media libraries.
Preferably, a rotary machine CFD system further includes a commercial CFD solver interface into which other commercial CFD solvers can be imported.
Preferably, the rotary machine CFD system further comprises a result export interface, which can export the solution calculation result, and export file format supports other commercial CFD solvers to open and further process, including Plot3D, paraview, CGNS, tecplot, and the like.
The specific working flow of the CFD system of the rotary machine is as follows:
1. the preprocessing module parameterizes to create a rotational geometric solid model, extracts a fluid domain and semi-automatically performs fluid domain meshing.
2. And (5) entering a fluid material library to select a required working medium.
3. The turbulence model and the wall surface processing mode are selected, an energy equation is started according to the requirement, boundary conditions of an inlet and an outlet are set for flow field initialization, a solving format is set, monitoring physical quantity in a calculation process, steady and unsteady solving, iteration steps, time steps and internal iteration steps are set, and the steps are stored.
4. Solving and displaying and checking the flow field distribution condition by using a cloud chart and a vector chart of the analysis result.
5. And outputting and storing the result file.
Although specific embodiments of the invention have been disclosed for illustrative purposes, it will be appreciated by those skilled in the art that the invention may be implemented with the help of a variety of examples: various alternatives, variations and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will have the scope indicated by the scope of the appended claims.
Claims (8)
1. The CFD system of the rotary machine is characterized by comprising a fluid medium library, a CFD solver, a preprocessing module, a solver setting module, a convergence setting module and a post-processing module;
the fluid medium library is used for storing attribute parameters of various fluid media, and each attribute parameter corresponds to a physical parameter and a calculation formula of one fluid medium;
the solver setting module is used for acquiring preconditions and basic data required by the calculation of the CFD solver; the setting content of the solver setting module comprises: fluid medium setting, boundary condition setting, initialization setting, option setting, multi-block setting, start CFD setting, multi-working condition setting, and multi-grid setting;
the fluid medium setting is used for selecting a fluid medium according to the simulation object and selecting a corresponding calculation formula according to the selected fluid medium; the calculation formula comprises a balance equation, a thermal balance equation and a transportation equation;
the boundary condition setting is used for setting the calculation type and specific condition parameters of the inlet and outlet of the fluid domain according to the actual working condition;
the initialization setting is used for estimating an initial value of iterative computation in the whole CFD numerical simulation process according to the set boundary condition;
the option setting is used for setting corresponding boundary condition models for the inlet and the outlet of the fluid domain;
the multi-block setting is used for selecting compressible and incompressible, space discrete format, merkle preprocessing, global residual error fairing processing, solving precision and storing intermediate results;
the start CFD setting is used for setting operation parameters;
the multi-working condition setting is used for operating a plurality of calculation working conditions at one time by adjusting a rotating speed working condition point and a boundary type working condition point;
the multiple grid arrangement is used for accelerating the convergence calculation of the CFD solver through interpolation reconstruction among grids with different scales by selecting a multiple grid method; the multiple grid arrangement comprises 0-N layers according to the thickness degree of grids, wherein 0 represents that a multiple grid method is not used, the layers are gradually enlarged from 1-N to represent that the size of the grids is gradually enlarged, and the grids are thickened;
the preprocessing module is used for establishing a rotary mechanical geometric model according to the solved problem and extracting a fluid domain according to the pre-condition; then calculating and solving the requirements of the turbulence model used on the grid to generate CFD calculation grids corresponding to each fluid domain;
the convergence setting module is used for setting the calculation termination condition of the CFD solver;
the CFD solver is used for carrying out fluid simulation calculation on the gridded fluid domain and sending a calculation result to the post-processing module;
the post-processing module is used for acquiring flow field distribution conditions according to the calculation result, extracting flow field information at different positions according to the need and verifying whether the simulation purpose is achieved or not; and optimizing the structural parameters of the geometric model of the rotary machine according to the calculation result.
2. The rotary machine CFD system of claim 1 wherein the settings of the solver settings module further comprise solver option settings; the solver option is used for selecting turbulence models, wall surface processing modes, time propulsion formats and decomposition matrix free parameters adopted by analysis and calculation; the operation parameters comprise steady or unsteady state, solver priority, whether to draw a residual curve during solving and timing to start operation time.
3. The rotary machine CFD system of claim 2, wherein the optional turbulence model in the solver option settings comprises: baldwin-Lomax model, spark-Allmaras 1-equality model, inviscid Euler solution, lamini solution, k-epsilon 2-equality model, k-omega 2-equality model, SST 2-equality model; the selectable wall surface treatment modes comprise logarithmic law hub/casing shear stress, non-viscous hub, non-viscous casing, non-viscous hub/casing and laminar flow hub/casing shear stress; alternative time-marching formats are raw B-to-B3D, second order Dragon's library tower, fourth order Dragon's library tower, implicit.
4. The rotary machine CFD system of claim 1, wherein in the boundary condition settings, the inlet boundary settings include total pressure or flow, total temperature or total enthalpy, speed direction; the setting of the outlet boundary includes the total pressure, pressure ratio or differential of the flow or casing, the total pressure, pressure ratio or differential in the lobes, the total pressure, pressure ratio or differential of the hub.
5. The rotary machine CFD system of claim 1, wherein the enabling CFD settings further includes performing a CPU parallel mode setting, wherein the CPU parallel mode has three modes: pure MPI mode, pure OpenMP mode, a hybrid of MPI and OpenMP mode.
6. The rotary machine CFD system of claim 1, further comprising a commercial fluid media library interface for importing other commercial fluid media libraries.
7. The rotary machine CFD system of claim 1, further comprising a commercial CFD solver interface for importing other commercial CFD solvers.
8. The rotary machine CFD system of claim 1, further comprising a result export interface for exporting solution calculations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310221517.2A CN115906718B (en) | 2023-03-09 | 2023-03-09 | CFD system of rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310221517.2A CN115906718B (en) | 2023-03-09 | 2023-03-09 | CFD system of rotary machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115906718A CN115906718A (en) | 2023-04-04 |
| CN115906718B true CN115906718B (en) | 2023-05-23 |
Family
ID=85728490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310221517.2A Active CN115906718B (en) | 2023-03-09 | 2023-03-09 | CFD system of rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115906718B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116186816B (en) * | 2023-04-26 | 2023-09-08 | 陕西空天信息技术有限公司 | Rotary machine parameter display method, storage medium and electronic device |
| CN116205009A (en) * | 2023-05-05 | 2023-06-02 | 陕西空天信息技术有限公司 | Impeller model structure analysis method and device, electronic equipment and storage medium |
| CN116484771B (en) * | 2023-06-21 | 2023-08-25 | 陕西空天信息技术有限公司 | Method and device for generating CFD grid of axial flow compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084105A1 (en) * | 2015-11-20 | 2017-05-26 | 田川 | System and method for numerical simulation of plasma discharges |
| CN114912383A (en) * | 2022-05-19 | 2022-08-16 | 张明扬 | FLUENT-based rotary packed bed flow field analysis method |
| CN115422654A (en) * | 2022-08-21 | 2022-12-02 | 西北工业大学 | CFD/CSD technology-based efficient high-precision flutter time domain analysis method for cross/supersonic aircraft |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8744812B2 (en) * | 2011-05-27 | 2014-06-03 | International Business Machines Corporation | Computational fluid dynamics modeling of a bounded domain |
| CN114611348A (en) * | 2022-02-24 | 2022-06-10 | 南京航空航天大学 | Simulation detection method, device and medium for high-speed gear wind resistance and flow field regulation |
| CN114611437B (en) * | 2022-05-09 | 2022-08-09 | 上海华模科技有限公司 | Method and device for establishing aircraft pneumatic model database based on CFD technology |
| CN114662425B (en) * | 2022-05-25 | 2022-09-20 | 浙江远算科技有限公司 | Water turbine start-stop working condition flow field simulation prediction method and system |
-
2023
- 2023-03-09 CN CN202310221517.2A patent/CN115906718B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084105A1 (en) * | 2015-11-20 | 2017-05-26 | 田川 | System and method for numerical simulation of plasma discharges |
| CN114912383A (en) * | 2022-05-19 | 2022-08-16 | 张明扬 | FLUENT-based rotary packed bed flow field analysis method |
| CN115422654A (en) * | 2022-08-21 | 2022-12-02 | 西北工业大学 | CFD/CSD technology-based efficient high-precision flutter time domain analysis method for cross/supersonic aircraft |
Non-Patent Citations (3)
| Title |
|---|
| Design optimization for the hydraulic efficiency improvement of a mixed-flow pump impeller;Design optimization for the hydraulic efficiency improvement of a mixed-flow pump impeller;IEEE;全文 * |
| 动网格生成技术及非定常计算方法进展综述;张来平;邓小刚;张涵信;;力学进展(第04期);全文 * |
| 离心水泵流场数值模拟分析方法探究;骆艳洁;王海博;李骁;;通信电源技术(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115906718A (en) | 2023-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115906718B (en) | CFD system of rotary machine | |
| CN108984920B (en) | Direct fluid-solid coupling heat transfer analysis method for engine cooling water jacket | |
| CN114662425B (en) | Water turbine start-stop working condition flow field simulation prediction method and system | |
| CN112417773A (en) | Multidisciplinary optimization design method, device and equipment for multistage axial flow expansion machine | |
| CN110032826B (en) | Modeling simulation method of indirect cooling cycle gas turbine combining Matlab and AMESim | |
| CN109783882B (en) | Modeling simulation method for gas turbine fuel system combining matlab and flowmaster | |
| Bunnell et al. | Structural design space exploration using principal component analysis | |
| CN112035995A (en) | Nonstructural grid tidal current numerical simulation method based on GPU (graphics processing Unit) computing technology | |
| CN116992747B (en) | Dynamic analysis method of impulse turbine based on SPH fluid-solid coupling | |
| CN102279900B (en) | Turbine virtual testing system for small turbine engine | |
| CN116306365A (en) | Fluid simulation method of rotary machine | |
| CN115270363B (en) | Centrifugal compressor blade optimization design method and device based on multi-agent model | |
| WO2023138077A1 (en) | Reactor modeling data acquisition method and apparatus, and device, medium and program product | |
| CN116844669A (en) | Carbon/carbon composite material CVD furnace charging configuration flow field simulation method, medium and terminal | |
| CN113379103B (en) | Prediction method of pump equipment internal flow field based on reduced order model | |
| CN115964891A (en) | Simulation analysis method and device for automobile fan and storage medium | |
| Buono et al. | Analysis of the cooling plant of a high performance motorbike engine | |
| CN113515902B (en) | Method and device for initializing full-loop unsteady simulation of inner flow of gas compressor | |
| Wei et al. | Study on hydrodynamic torque converter parameter integrated optimization design system based on tri-dimensional flow field theory | |
| Capizzano | A compressible flow simulation system based on cartesian grids with anisotropic refinements | |
| Zelenský et al. | Numerical analysis of air flow in a modular fan unit using CFD simulation | |
| Lee et al. | Development of a web-based open source CAE platform for simulation of IC engines | |
| Ljungskog et al. | CFD for Underhood Modeling. Development of an Efficient Method | |
| CN116522740B (en) | Method, device, equipment and medium for capturing oil-gas interface of engine nozzle | |
| CN115270361B (en) | Centrifugal compressor impeller optimization design method and device for efficiently solving constraint problem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |