基于Fluent的FSAE赛车流场分析  

FSAE Flow Field Analysis Based on Fluent

作　　者：王悦新[1] 张国胜[2] 

机构地区：[1]龙岩学院机电工程学院,福建龙岩364012 [2]交通运输部公路科学研究院,北京100088

出　　处：《交通节能与环保》2017年第3期25-29,共5页Transport Energy Conservation & Environmental Protection

基　　金：福建省自然科学基金项目(2017J01706)

摘　　要：空气动力学特性直接影响车辆的稳定性、驾驶特性、安全性、操纵性及油耗。本文利用Fluent建立1:1的FSAE赛车模型,选择合适的数学模型进行三维流场的数值模拟。针对结构缺陷进行优化,增加了前后扰流板,扰流板使车辆阻力和升力都减小的同时,对汽车产生额外的地面附着力,它能抵消一部分气动升力,控制汽车上浮,使汽车能紧贴着道路行驶。仿真结果显示优化后的赛车压力分布更均匀、速度流线满足下压力要求、结构更加合理。The aerodynamic characteristics directly affect the stability, driving characteristics, safety, operation and oil consumption of automobiles. This thesis builds a 1：1 proportion FSAE model, do numeri- cal simulation job about 3D flow field through selecting proper Math model. Optimizing the structural de- fects, adding front and rear spoiler, Spoilers make vehicle drag and lift force decrease together with pro- ducing the ground adhesion, it can offset part of aerodynamic lift force, forbidding vehicle floating up- wards, make vehicle move tightly against the road. The simulating result manifests that the car＇ s pressure distribution is more evenly, the velocity streamline satisfy the down pressure requirement, the FSAE con- figuration is more reasonable after optimization.

关 键 词：FLUENT FSAE 流场分析 优化 

分 类 号：U469.696[机械工程—车辆工程]