Parameter configuration method and system for computational fluid dynamics simulation

A technology of computational fluid dynamics and parameter configuration methods, applied in the field of computational fluid dynamics simulation calculations, to achieve the effects of getting rid of uncertainty, strong versatility, and improving ease of use
CN109858158BActive Publication Date: 2020-01-31NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
Publication Date
2020-01-31

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Abstract

A parameter configuration method for computational fluid mechanics simulation comprises the steps of setting experimental values of parameters of computational fluid mechanics simulation, obtaining anexperimental result data set of computational fluid mechanics simulation d through a simulation experiment method, conducting error evaluation on the basis of the experimental result data set to obtain error data; determining an error model and a performance model based on the experimental values of the parameters, the error data and the simulation experimental result data set; taking the error model and the performance model as constraints, and performing calculation to obtain a parameter configuration optimal value of computational fluid mechanics simulation; wherein the parameters comprisegrid density and discrete orders. According to the technical scheme provided by the invention, parameter configuration can be configured based on a grid order irrelevant theory in high-order computational fluid mechanics simulation, the performance can be optimal on the premise of meeting the precision requirement, and the efficiency of high-order computational fluid mechanics simulation is improved.
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Description

technical field

[0001] The invention relates to computational fluid dynamics simulation calculations, in particular to a parameter configuration method and system for computational fluid dynamics simulations. Background technique

[0002] Computational fluid dynamics is a typical interdisciplinary subject, which uses numerical methods and computer simulations to solve realistic physical, biological and chemical problems. Compared with traditional test methods, in addition to low cost and high efficiency, computational fluid dynamics simulation is also flexible and adjustable. For example, in the computational fluid dynamics simulation of the airfoil, in order to observe the phenomenon under different physical conditions, it is usually only necessary to adjust the parameters related to the initial conditions and boundary conditions in the computational fluid dynamics code; in order to obtain more reliable results, You only need to adjust the parameters related to the simulat...

Claims

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