| 类车体尾迹区雷诺应力实验分析 |
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| 引用本文： | 朱晖,杨志刚.类车体尾迹区雷诺应力实验分析[J].同济大学学报(自然科学版),2011,39(10):1543-1547. |
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| 作者姓名： | 朱晖 杨志刚 |
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| 作者单位： | 同济大学汽车学院,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（2011CB711200） |
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| 摘 要： | 对后倾角35°类车体在模型风洞中进行实验,运用3维热线风速仪在选定测点上对空间3个速度分量进行采样.对采得的瞬时值进行统计分析,并制成雷诺应力分量云图.由图谱可知:类车体尾迹区流动以一对拖曳涡为其主要特征,地面效应影响至流动远场,雷诺应力分量的分布特征随离车体的远近而变化.
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| 关 键 词： | 类车体 雷诺应力 风洞实验 |
| 收稿时间： | 7/19/2010 9:45:11 AM |
| 修稿时间： | 7/7/2011 10:17:34 AM |
Experimental Analysis of Reynolds Stress in Wake of Ahmed Model |
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| ZHU Hui and YANG Zhigang.Experimental Analysis of Reynolds Stress in Wake of Ahmed Model[J].Journal of Tongji University(Natural Science),2011,39(10):1543-1547. |
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| Authors: | ZHU Hui and YANG Zhigang |
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| Institution: | College of Automotive Studies,Tongji University,Shanghai 201804,China;College of Automotive Studies,Tongji University,Shanghai 201804,China |
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| Abstract: | The Ahmed model with 35°slant angle was tested in the model wind tunnel.The components of velocity were captured by using 3D CTA.By statistically analysis with the transient value of velocity,the contour spectrums of Reynolds stress components were presented.According to the spectrums,the feature of the flow structure is showed with drag vortex pair and ground effect extending to far field.The distribution characteristic of the stress components varies with the distance from model body. |
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| Keywords: | ahmed body Reynolds stress wind tunnel test |
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