| PIV技术在汽车模型风洞中的应用 |
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| 引用本文： | 陈细军,谷正气,何忆斌,袁志群,于天恒.PIV技术在汽车模型风洞中的应用[J].汽车工程,2009,31(2). |
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| 作者姓名： | 陈细军 谷正气 何忆斌 袁志群 于天恒 |
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| 作者单位： | 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 运用粒子图像测速(PIV)技术对某类车体纵对称面内的尾部流场进行测量;研究了不同雷诺数下尾部流场的变化,并对速度场和涡量场进行定量分析.结果表明PIV技术用于汽车周围复杂流场的测量具有很强的优势,将成为汽车空气动力学试验的一种新的研究方法.
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| 关 键 词： | 粒子图像测速 汽车风洞 尾部流场 空气动力学 |
The Application of PIV Technology in Automotive Wind Tunnel |
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| Chen Xijun,Gu Zhengqi,He Yibin,Yuan Zhiqun,Yu Tianheng.The Application of PIV Technology in Automotive Wind Tunnel[J].Automotive Engineering,2009,31(2). |
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| Authors: | Chen Xijun Gu Zhengqi He Yibin Yuan Zhiqun Yu Tianheng |
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| Institution: | Chen Xijun,Gu Zhengqi,He Yibin,Yuan Zhiqun & Yu Tianheng Hunan University,State Key Laboratory of Advanced Design , Manufacturing for Vehicle Body,Changsha 410082 |
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| Abstract: | Particle Image Velocimetry(PIV) technology is applied to measure the wake flow field in the longitudinal symmetry plane of a car-like body.The change in wake flow field at different Reynolds numbers is studied and the velocity and vorticity fields are quantitatively analyzed.The results suggest that PIV technology has strong advantage in measuring complicated flow field around a vehicle,and will become a new research method in automotive aerodynamics test. |
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| Keywords: | particle image velocimetry automotive wind tunnel wake flow field aerodynamics |
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