| 降雨对浅层水流阻力的影响 |
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| 引用本文： | 陈国祥,姚文艺.降雨对浅层水流阻力的影响[J].水科学进展,1996,7(1):42-46. |
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| 作者姓名： | 陈国祥 姚文艺 |
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| 作者单位： | 1.河海大学水资源水文系 南京 210098; |
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| 摘 要： | 通过实验室人工降雨水槽试验,研究了降雨影响下浅层水流的阻力规律。根据试验中观察到的物理现象及对实测资料的分析,讨论了降雨对浅层水流特性的影响,提出了"伪层流"的概念,建立了不同流区的Darcy-Weisbach阻力系数∫的估算式。研究成果可用于坡面流计算及土壤侵蚀模拟等方面。
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| 关 键 词： | 浅层水流 坡面流 水流阻力 Darcy-Weisbach阻力系数 |
| 收稿时间： | 1994-07-11 |
Effect of Rainfall on Hydraulic Resistance of Shallow Flow |
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| Chen Guoxiang,Yao Wenyi.Effect of Rainfall on Hydraulic Resistance of Shallow Flow[J].Advances in Water Science,1996,7(1):42-46. |
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| Authors: | Chen Guoxiang Yao Wenyi |
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| Institution: | 1.Hohai University, Nanjing 210098;2.Yellow River Water Conservancy Commission, Zhengzhou 450003 |
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| Abstract: | The hydraulic resistance of shallow water flow under the influence of rainfall has been investigated through the flume experiment with artificial rainfall. The effect of rainfall on the flow characteristics of shallow water has been analysed,the concepture of "False-laminar flow" has been suggested,and the formula of Darcy-weisbach resistance coefficient has been eastablished. The results of the study can be used in overland flow routing and soil erosion simulation. |
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| Keywords: | shallow water flow overland flow flow resistance darcy-weisbach resistance coefficient |
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