| 旋转车轮对整车气动性能的影响评价 |
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| 引用本文： | 贾青,李挺,杨志刚.旋转车轮对整车气动性能的影响评价[J].同济大学学报(自然科学版),2014,42(6):0949-0955. |
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| 作者姓名： | 贾青 李挺 杨志刚 |
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| 作者单位： | 同济大学 上海市同济大学地面交通工具风洞中心，上海 201804;同济大学 上海市同济大学地面交通工具风洞中心，上海 201804;同济大学 上海市同济大学地面交通工具风洞中心，上海 201804 |
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| 基金项目： | 国家“九七三”重点基础研究发展计划（2011CB711205） |
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| 摘 要： | 为研究整车轮边流场结构特征,以不同尾部造型形式的简单车体和复杂车体为研究对象,分别对静止和旋转车轮工况进行了数值研究.计算采用定常雷诺时均纳维斯托克斯方程.针对数值计算结果,通过对静止及旋转车轮周围流场的流动情况、表面压力系数、气动阻力系数和升力系数等数据的详细分析,得到了车轮旋转会对轮边流场和整车流场产生极大的影响,整车气动阻力和气动升力下降,气动性能得到改善.
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| 关 键 词： | 数值计算 定常雷诺时均方程 旋转车轮 |
| 收稿时间： | 2013/5/22 0:00:00 |
| 修稿时间： | 3/7/2014 12:00:00 AM |
Influence of Rotating Wheels on Vehicle Aerodynamics |
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| JIA Qing,LI Ting and YANG Zhigang.Influence of Rotating Wheels on Vehicle Aerodynamics[J].Journal of Tongji University(Natural Science),2014,42(6):0949-0955. |
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| Authors: | JIA Qing LI Ting and YANG Zhigang |
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| Institution: | Shanghai Automotive Wind Tunnel Center, Tongji University, Shanghai 201804, China;Shanghai Automotive Wind Tunnel Center, Tongji University, Shanghai 201804, China;Shanghai Automotive Wind Tunnel Center, Tongji University, Shanghai 201804, China |
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| Abstract: | A full scaled vehicle was applied to a research of the local and global flow characteristics. Two different conditions including stationary and rotation were employed in computational simulation by steady Reynolds Averaged Navier Stokes (RANS) calculation. Furthermore, a detailed analysis on flow, surface pressure coefficient, drag coefficient and lift coefficient affected by rotating wheel figures out that rotating wheel has a great influence on the flow around wheel and the vehicle. Pressure difference, drag coefficient and lift coefficient are decreased by rotation, which improves aerodynamic performance. |
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| Keywords: | numerical simulation steady Reynolds Averaged Navier Stokes (RANS) rotating wheel |
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