CFD技术进展及其在汽车设计中的应用

Progress of CFD Technology and Its Application in Automotive Design

计算流体力学是流体力学的一个分支,在整个流体力学中的地位也十分突出。现代汽车技术随着科学技术的不断革新和进步,与以前相比汽车整体结构变得越发复杂,在汽车综合性能研发中,空气动力特征起着重要作用。计算流体力学正被大量应用于现代汽车开发过程,它的应用将使传统所需的风洞试验次数大大减少,降低设计成本,缩短研发周期。本文着重介绍了目前国内CFD技术(计算流体动力学)的发展现状,以及基于CFD技术在汽车整车设计方面的应用,并对计算流体力学的发展和应用进行了综述,对其发展趋势做了探讨。

Computational fluid dynamics is a branch of fluid mechanics and its position in the entire fluid mechanicsis also very prominent.Modern automotive technology with the constant innovation and progress of science andtechnology,the overall structure of a vehicle becomes more complicated than before.The aerodynamic characteristics inthe development of comprehensive automobile performance play an important role.Computational fluid dynamics isbeing used in large quantities in modern automobile development.Its application will greatly reduce the number of windtunnel tests required by traditional methods,reduce design costs and shorten the development cycle.This article focuseson the current development of CFD technology （computational fluid dynamics） in China,and the application of CFDtechnology in automobile vehicle design.The development and application of computational fluid dynamics arereviewed and their development trends are reviewed Discussion.