流线型轿车外流场的数值模拟  

NUMERICAL SIMULATION OF FLOW FIELD AROUND STREAMLINED CAR

作　　者：许建民[1] 易际明[1] 赵军[1] 丁涛[1] 

机构地区：[1]厦门理工学院机械工程系,福建厦门361024

出　　处：《陕西科技大学学报（自然科学版）》2011年第5期61-64,共4页Journal of Shaanxi University of Science & Technology

基　　金：厦门市科技计划项目(3502Z20103040;3502Z20113039)

摘　　要：用UG对一流线型轿车进行了三维实体建模,将其导入前处理软件Gambit,建立计算域后网格化,并用CFD软件FLUENT对汽车模型的外流场进行了三维稳态流动数值模拟,得出了汽车模型的三维速度场和压力场,为获得最佳空气动力性的轿车设计提供了直观依据.In this article,a three dimensional solid model of a streamlined car is established by using Unigraphics,the model is imported pre-processing software Gambit,then the computing domain is gridded.Three-dimensional numerical simulation of steady out flow was carried for the car modelwith the CFD software Fluent.The three-dimensional velocity and pressure field for the car model is obtained.It provides a visual basis to get the best aerodynamic design of cars.

关 键 词：CFD 汽车外流场 速度场 压力场 

分 类 号：U461.1[机械工程—车辆工程]