OpenMP parallel disturbance domain updating method for aircraft aerodynamic characteristic simulation

Abstract

An OpenMP parallel disturbance domain updating method for aircraft aerodynamic characteristic simulation comprises the steps of data reading, static region decomposition, dynamic computational domain establishment, dynamic region decomposition, storage space allocation, boundary condition processing, residual estimation, time integration, in-block increase of a convective dynamic domain, in-block reduction of a dynamic computational domain, in-block increase of a viscous dynamic domain, in-block reduction of the viscous dynamic domain, in-block increase of the dynamic computational domain, judging of whether the solution reaches a convergence condition, outputting of a result and the like. The problems that a large amount of invalid calculation exists when an existing parallel numerical simulation method simulates the aerodynamic characteristics of an aircraft, and the calculation efficiency may be lost when an existing disturbance area updating method carries out large-scale parallelization can be solved.

Description

technical field [0001] The invention relates to the field of computational fluid dynamics, in particular to an OpenMP parallel disturbance domain update method for simulating aerodynamic characteristics of an aircraft. Background technique [0002] Computational fluid dynamics numerical simulation has changed the design process of contemporary aircraft and has become an indispensable key technology in the design of various advanced aircraft. Through the efficient integration of existing technology and new technology, the computational efficiency of numerical simulation is continuously improved, which has important engineering application value for improving the efficiency of aircraft design iteration and shortening the development cycle. [0003] Parallel technology is one of the acceleration technologies that must be used to simulate the aerodynamic characteristics of aircraft. The acceleration principle of parallel technology is mainly to decompose the computing task into...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide an OpenMP parallel disturbance domain update method for aircraft aerodynamic characteristics simulation, which can deal with the problems of a large number of invalid calculations in the existing parallel numerical simulation method when simulating aircraft aerodynamic characteristics, and It can solve the problem of possible loss of computational efficiency when the existing disturbance area update method is carried out in large-scale parallelism, and can also minimize the workload of inner boundary processing based on the new data structure and loop structure

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