| 柔性管自激振动减阻效果的实验研究 |
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| 引用本文： | 蔡书鹏,唐川林,李大美.柔性管自激振动减阻效果的实验研究[J].水利水电科技进展,2006,26(1):16-19. |
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| 作者姓名： | 蔡书鹏 唐川林 李大美 |
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| 作者单位： | 1. 株洲工学院高压水射流研究所,湖南,株洲,412008
2. 武汉大学水利水电学院,湖北,武汉,430072 |
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| 摘 要： | 在实验确认柔性管紊流减阻效果的基础上,采用双重管结构,对柔性管的自激振动减阻效果进行了实验研究。结果表明:管的壁厚越小自激振动的减阻率越大;在雷诺数约为2.2×104时,壁厚为2 mm,3 mm及4 mm的柔性管自激振动减阻率依次约为13%,10%,8%。
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| 关 键 词： | 柔性管 双重管结构 自激振动 紊流减阻 |
| 文章编号： | 1006-7647(2006)01-0016-04 |
| 修稿时间： | 2005年3月23日 |
Experimental study on drag reduction effect by self-excited vibration of flexible tubes |
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| CAI Shu-peng,TANG Chuan-lin,LI Da-mei.Experimental study on drag reduction effect by self-excited vibration of flexible tubes[J].Advances in Science and Technology of Water Resources,2006,26(1):16-19. |
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| Authors: | CAI Shu-peng TANG Chuan-lin LI Da-mei |
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| Abstract: | Based on the confirmation of the turbulent drag reduction effect of flexible tubes,an experimental study was conducted on the drag reduction effect by self-excited vibration of flexible tubes with a double-sleeve structure.The result shows that the drag reduction rate by self-excited vibration inversely varies with the thickness of the tubes.The rates of drag reduction of the flexible tubes with the thickness of 2?mm,3?mm,and 4?mm were about 13%,10%,and 8%,respectively,at the Reynolds number about 2.2×10~4 in the experiment. |
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| Keywords: | flexible tube tube with double-sleeve structure self-excited vibration turbulent drag reduction |
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