| 不同几何参数车轮的汽车流场数值模拟研究 |
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| 引用本文： | 傅立敏,胡兴军,张世村.不同几何参数车轮的汽车流场数值模拟研究[J].汽车工程,2006,28(5):451-454,459. |
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| 作者姓名： | 傅立敏 胡兴军 张世村 |
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| 作者单位： | 吉林大学,汽车空气动力学研究所,长春,130022;吉林大学,汽车空气动力学研究所,长春,130022;吉林大学,汽车空气动力学研究所,长春,130022 |
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| 基金项目： | 国家自然科学基金项目(60222207)，吉林大学“985工程”项目资助 |
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| 摘 要： | 在以前研究的基础上对单个车轮进行了深入的仿真模拟,增加了对车轮辐板外形的模拟。通过对同一型号的、有不同辐板开孔的车轮进行分组研究发现,车轮几何参数的改变不仅影响车轮局部流动,还影响整个汽车的流场特性。进一步分析流场计算结果表明,车轮周围流场中涡量变化是引起汽车以及车轮气动阻力系数改变的主要原因。
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| 关 键 词： | 空气动力学 涡流特征 数值模拟 车轮外形 |
| 收稿时间： | 2005-05-30 |
| 修稿时间： | 2005-05-302005-08-08 |
A Research on Numerical Simulation for the Flow Field Around Automotive Wheels with Different Geometric Parameters |
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| Fu Limin,Hu Xingjun,Zhang Shicun.A Research on Numerical Simulation for the Flow Field Around Automotive Wheels with Different Geometric Parameters[J].Automotive Engineering,2006,28(5):451-454,459. |
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| Authors: | Fu Limin Hu Xingjun Zhang Shicun |
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| Institution: | Institute of Automotive Aerodynamics, Jilin University, Changehun 130022 |
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| Abstract: | The flow field around a single wheel with different spokes is simulated using CFD technique.The wheels are divided into three groups according to the shape of spoke and the number and area of holes on it.The study shows that the change in geometric parameters of wheels affects not only the local flow around wheels but also the characteristics of flow field of complete vehicle.Further analysis indicates that the variation of vorticity in the flow field around wheels is one of the important causes for the changes not only in wheel resistance but even the aerodynamic drag coefficient of complete vehicle. |
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| Keywords: | Aerodynamics Vortex characteristics Numerical simulation Wheel shape |
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