| 壁面对串列双圆柱尾迹影响的实验研究 |
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| 引用本文： | 陈波,李万平.壁面对串列双圆柱尾迹影响的实验研究[J].实验力学,2011,26(4):404-410. |
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| 作者姓名： | 陈波 李万平 |
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| 作者单位： | 华中科技大学土木工程与力学学院,湖北武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目(10372033); 西部灾害与环境力学教育部重点实验室开放基金资助 |
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| 摘 要： | 为研究壁面对近壁等直径串列双圆柱尾迹特性的影响,用PIV和压力传感器测量尾迹湍流的涡结构及频谱.实验在循环水槽内进行,基于圆柱直径D的雷诺数为1696,壁面边界层厚度为6.6D.影响尾迹流场结构的两个重要的特征参数是T/D和G/D(T为两圆柱中心间的距离,G为圆柱下表面与壁面间的距离),文中主要考察G/D的影响.实验中...
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| 关 键 词： | 近壁 串列双圆柱 PIV 尾迹 涡脱落 |
Experimental Study of Wall Influence on the Wake Produced by Two Tandem Circular Cylinders |
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| CHEN Bo and LI Wan-ping.Experimental Study of Wall Influence on the Wake Produced by Two Tandem Circular Cylinders[J].Journal of Experimental Mechanics,2011,26(4):404-410. |
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| Authors: | CHEN Bo and LI Wan-ping |
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| Institution: | CHEN Bo,LI Wan-ping(Department of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | In order to investigate experimentally the flow characteristics of two tandem circular cylinders with equal diameter located in a fully developed turbulent boundary layer close to wall,the vortex structure in wake turbulent flow and frequency spectrum were measured by using particle image velocimetry(PIV) and pressure sensor.Experiment was performed in a recirculation water channel.Reynolds number is 1696 based on cylinder diameter(D) and the boundary layer thickness is 6.6D.Two significant parameters that ... |
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| Keywords: | close to wall two tandem circular cylinders Particle Image Velocimetry(PIV) wake flow vortex shedding |
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