| 洪水波波面演变特性的近似研究 |
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| 引用本文： | 叶春生,辜伟芳.洪水波波面演变特性的近似研究[J].河南科学,2009,27(6):707-709. |
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| 作者姓名： | 叶春生 辜伟芳 |
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| 作者单位： | 郑州大学水利与环境学院,郑州,450001 |
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| 摘 要： | 应用明渠二元均匀流理论，近似给出了洪水波演进的时空特性．引入波峰坦化率的概念，基于“达西-魏斯巴赫”公式，证明了洪水波在窄深河槽中的时空变化率小于宽浅河槽．
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| 关 键 词： | 均匀流 洪水波 时空特性 坦化率 达西-魏斯巴赫公式 |
Simple Study on Time and Space Routing Characters of Flood Wave |
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| Ye Chunsheng,Gu Weifang.Simple Study on Time and Space Routing Characters of Flood Wave[J].Henan Science,2009,27(6):707-709. |
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| Authors: | Ye Chunsheng Gu Weifang |
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| Institution: | School of Water Conservancy and Environment Engineering;Zhengzhou University;Zhengzhou 450001;China |
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| Abstract: | Based on the theory of 2-dimensional uniform stream,it gives characters of time and space involution of flood waves.With the decay ratio of flood wave introduced,and based on"Darcy-Weisbach"equation,it's deduced that the time and space change ration of flood wave which goes down the river with narrower and deeper cross-section is less than the flood wave that goes down the river with wider and shallower cross-section. |
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| Keywords: | uniform stream flood wave time and space characters decay ratio Darcy-Weisbach equation |
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