基于CPU-GPU的超音速流场N-S方程数值模拟

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中图分类号：V211.3DOI：10.3969/j.issn.1004-132X.2025.09.005 开放科学（资源服务）标识码（OSID）：

Numerical Simulation of N-S Equations for Supersonic Flow Fields Based

on CPU-GPU

LU ZhiweiZHANG HaoruLIU Xiyao'WANG Yadong ZHANG Zhuokai ZHANG Jun'an School of Mechatronic Engineering，Xi'an Technological University，Xi'an，710021

Abstract：To thoroughly analyze the characteristics of supersonic flow fields and enhance the efficiency of numerical computations，an eficient acceleration algorithm was designed. The algorithm herein fully leveraged the CPU-GPU heterogeneous parallel architecture and achieved data transmission and pro cessing through asynchronous streaming，significantly accelerating the computational processes of super sonic flow field numerical simulations.The results demonstrate that the computational speed of GPU parallel processing is markedly faster than that of CPU serial processing，and the speedup ratio exhibits a pro nounced increasing trend as the scale of the flow field grid expands. GPU parallel computing may effectively improve the computational speed of supersonic flow field simulations， providing a robust paralel computing method for the design，optimization，performance evaluation，and development of supersonic aircrafts.

Key words： supersonic flow field；central processing unit - graphics processing unit（CPU-GPU）; heterogeneous computing；finite difference

0 引言

近年来，超音速技术在军事（如反舰导弹和巡航导弹）和航空航天领域（如超音速飞机和高超音速飞机）得到广泛应用，为国防和民用提供了重要支持。（剩余12780字）