| CRITICAL UNIT STREAM POWER FOR SEDIMENT TRANSPORT |
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| 引用本文： | Huang Cai an College of Hydraulic and Civil Engineering,Yangzhou University,Yangzhou 225009,ChinaChih Ted Yang Technical Service Center,U.S. Bureau of Reclamation,Denver,Colorado 80225,USA. CRITICAL UNIT STREAM POWER FOR SEDIMENT TRANSPORT[J]. 水动力学研究与进展(B辑), 2003, 15(1) |
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| 作者姓名： | Huang Cai an College of Hydraulic and Civil Engineering Yangzhou University Yangzhou 225009 ChinaChih Ted Yang Technical Service Center U.S. Bureau of Reclamation Denver Colorado 80225 USA |
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| 作者单位： | Huang Cai an College of Hydraulic and Civil Engineering，Yangzhou University，Yangzhou 225009，ChinaChih Ted Yang Technical Service Center，U.S. Bureau of Reclamation，Denver，Colorado 80225，USA |
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| 摘 要： | 1 . ＩＮＴＲＯＤＵＣＴＩＯＮＡＮＤＬＩＴＥＲＡＴＵＲＥＲＥＶＩＥＷＩｎｃｉｐｉｅｎｔｍｏｔｉｏｎｉｓａｓｐｅｃｉａｌｃａｓｅｏｆｓｅｄｉｍｅｎｔｔｒａｎｓｐｏｒｔ ,ａｎｄｔｈｅｔｒａｎｓｐｏｒｔｒａｔｅｏｒｃｏｎｃｅｎｔｒａｔｉｏｎｉｓｚｅｒｏｏｒａｓｍａｌｌｖａｌｕｅｔｈｅｎ .Ｗｉｔｈｔｈｅｅｘｃｅｐｔｉｏｎｏｆｐｒｏｂａｂｉｌｉｓｔｉｃａｎｄｒｅｇｒｅｓｓｉｏｎａｐｐｒｏａｃｈ ,ｓｅｄｉｍｅｎｔｔｒａｎｓｐｏｒｔｅｑｕａｔｉｏｎｃａｎｂｅｅｘｐｒｅｓｓｅｄｉｎｏｎｅｏｆｔｈｅｆｏｌｌｏｗｉ…
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CRITICAL UNIT STREAM POWER FOR SEDIMENT TRANSPORT |
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| HUANG Cai-an,Chih Ted YANG. CRITICAL UNIT STREAM POWER FOR SEDIMENT TRANSPORT[J]. Journal of Hydrodynamics, 2003, 15(1) |
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| Authors: | HUANG Cai-an Chih Ted YANG |
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| Abstract: | Yang's (1996) sediment transport theory based on unit stream power is one of the most accurate theories, but in his equations the use of product of slope and critical velocity instead for critical unit stream power is not suitable. Dimensionless critical unit stream power required at incipient motion can be derived from the principle of conservation of power as a function of dimensionless particle diameter and relative roughness. Based on a lot of data sets, this new criterion was developed. By use of this new criteria, Yang's (1973) sand transport formula and his 1984 gravel transport formula could be improved when sediment concentration is less than about 100 ppm by weight. |
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| Keywords: | sediment transport unit stream power incipient motion |
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