| 侧风状态下轿车气动特性数值模拟方法的研究 |
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| 引用本文： | 龚旭,谷正气,李振磊,姜乐华,贾新建,宋昕.侧风状态下轿车气动特性数值模拟方法的研究[J].汽车工程,2010,32(1). |
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| 作者姓名： | 龚旭 谷正气 李振磊 姜乐华 贾新建 宋昕 |
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| 作者单位： | 1. 湖南大学,汽车车身先进制造国家重点实验室,长沙,410082
2. 国防科技大学指挥军官基础教育学院,长沙,410073 |
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| 基金项目： | 国家863计划，湖南省科技计划重大项目，教育部长江学者创新团队发展计划项目 |
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| 摘 要： | 采用3种不同方法,利用计算流体力学软件FLUENT对侧风状态下轿车的气动特性进行了数值模拟,得到了不同侧风状态下轿车气动阻力系数和侧力系数随横摆角而变化的曲线。讨论了不同方法的优缺点并将模拟结果与风洞实验进行对比,结果表明采用合适的数值模拟方法可省时省力地获得接近于实验的结果。
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| 关 键 词： | 汽车空气动力学 侧风 数值模拟 风洞实验 |
A Study on the Numerical Simulation of Car Aerodynamic Characteristics Under Crosswind Conditions |
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| Gong Xu,Gu Zhengqi,Li Zheulei,Jiang Lehua,Jia Xinjian,Song Xin.A Study on the Numerical Simulation of Car Aerodynamic Characteristics Under Crosswind Conditions[J].Automotive Engineering,2010,32(1). |
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| Authors: | Gong Xu Gu Zhengqi Li Zheulei Jiang Lehua Jia Xinjian Song Xin |
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| Institution: | Gong Xu1,Gu Zhengqi1,Li Zhenlei1,Jiang Lehua2,Jia Xinjian1 & Song Xin11.Hunan University,State Key Laboratory of Advanced Design , Manufacturing for Vehicle Body,Changsha 410082,2.College of Basic Education for Officers,National University of Defense Technology,Changsha 410073 |
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| Abstract: | By adopting 3 different schemes and using CFD software FLUENT,numerical simulations on the aerodynamic characteristics of a car under crosswind conditions are conducted,and the car aerodynamic drag and side force coefficient curves as the functions of yaw angle under different crosswind conditions are obtained.The advantages and drawbacks of different schemes are discussed and the simulation results are compared with that of tunnel experiments.The results show that adopting appropriate numerical simulation ... |
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| Keywords: | vehicle aerodynamics crosswind nnmerical simulation wind tunnel experiment |
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