| 不同粗糙表面的圆柱风压分布试验研究 |
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| 引用本文： | 李会知, 樊友景, 吴义章, 李思堂. 不同粗糙表面的圆柱风压分布试验研究[J]. 工程力学, 2002, 19(2): 129-132. |
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| 作者姓名： | 李会知 樊友景 吴义章 李思堂 |
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| 作者单位： | 郑州大学土木工程学院, 郑州, 450002 |
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| 摘 要： | 通过风洞试验研究了不同表面粗糙度、不同雷诺数条件下二维圆柱的压力分布和阻力特性。结果表明:通过合理地增大表面粗糙度,在相对较低的风速下有效地模拟了圆柱的超临界绕流特性,满足了工程应用对超临界雷诺数的要求。
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| 关 键 词： | 圆柱绕流 压力分布 阻力系数 雷诺数 表面粗糙度 |
| 文章编号： | 1000-4750(2002)02-129-04 |
| 收稿时间： | 2000-07-16 |
| 修稿时间： | 2000-11-18 |
WIND TUNNEL TEST OF PRESSURE DISTRIBUTION ON CYLINDERS WITH VARIOUS SURFACE ROUG HNESS |
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| LI Hui-zhi, FAN You-jing, WU Yi-zhang, LI Si-tang. WIND TUNNEL TEST OF PRESSURE DISTRIBUTION ON CYLINDERS WITH VARIOUS SURFACE ROUGHNESS[J]. Engineering Mechanics, 2002, 19(2): 129-132. |
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| Authors: | LI Hui-zhi FAN You-jing WU Yi-zhang LI Si-tang |
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| Affiliation: | College of Civil Engineering, Zhengzhou University, Zhengzhou 450002 |
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| Abstract: | The pressure distribution on a circular cylinder surface in three surface roughness conditions was measured. The flow around the cylinder and aerodynamic force were studied. The results show that increasing surface roughness of cylinder makes a higher Reynolds number and thus it is effective to simulate supercritical flow around circular cylinder at a relatively low wind speed. It is concluded that increasing surface roughness is useful in wind tunnel load test simulating cylindrical structures in supercritical flow at relatively low Reynolds numbers. |
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| Keywords: | flow around circular cylinder pressure distribution drag coefficient Reynolds number surface roughness |
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