半结构网格在车身外流场数值模拟中的应用  

Numerical Simulation of an External Flow-Field around a Car Body Using Semistructured Meshes

作　　者：周廷美[1] 王仲范[2] 

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]武汉理工大学汽车工程学院,湖北武汉430070

出　　处：《武汉理工大学学报（信息与管理工程版）》2002年第2期109-111,共3页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：湖北省自然科学基金资助项目 (98J0 5 9)

摘　　要：车身外流场的网格生成是进行数值模拟的一个关键技术及前提。描述了三棱柱半结构网格的生成方法 ,采用有限体积法在三棱柱网格上离散求解雷诺平均三维不可压Navier Stokes方程 ,模拟车身外流场。还计算了 6种类型的简化车身模型的外流气动特性 。Grid generation in an external flow-field around a car body is one of the key techniques and prerequisites of numerical simulation. A method to generate prismatic semistructured meshes is described. The finite volume method is used to discretize and solve the Reynolds averaged incompressible Navier-Stoke Equations in prismatic semistructureed meshes. The numerical simulation is performed on six typical models of simplified automobile bodies. The results of the simulation are consistent with those of the experiments.

关 键 词：半结构网格 N-S方程 车身外流场 数值模拟 汽车 

分 类 号：U461.1[机械工程—车辆工程] TP391.9[交通运输工程—载运工具运用工程]