| 光滑壁面明渠陡坡流速分布特性 |
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| 引用本文： | 万俊,何建京,王泽. 光滑壁面明渠陡坡流速分布特性[J]. 水动力学研究与进展(A辑), 2010, 25(1). DOI: 10.3969/j.issn.1000-4874.2010-01.006 |
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| 作者姓名： | 万俊 何建京 王泽 |
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| 作者单位： | 1. 河海大学水利水电工程学院,南京,210098
2. 河海大学环境科学与工程学院,南京,210098 |
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| 摘 要： | 在分析激光测速试验资料基础上,对比了光滑壁面明渠陡坡中均匀流和非均匀流垂向流速分布在不同水力条件下的规律。陡坡均匀流中κ值比非均匀流条件下为小,非均匀流中S2型非均匀流的黏性底层厚度和过渡层范围均小于S1型非均匀流,并且拟合出适合陡坡均匀流和非均匀流的统一流速分布公式。
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| 关 键 词： | 明渠 陡坡 流速分布 非均匀流 |
Velocity distribution characteristics in a smooth open channel with steep slope |
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| WAN Jun,HE Jian-jing,WANG Ze. Velocity distribution characteristics in a smooth open channel with steep slope[J]. Chinese Journal of Hydrodynamics, 2010, 25(1). DOI: 10.3969/j.issn.1000-4874.2010-01.006 |
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| Authors: | WAN Jun HE Jian-jing WANG Ze |
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| Abstract: | Based on the experimental data measured by LDV system, vertical velocity distribution were well compared for suberitical and supereritical flow under the different hydraulic condition in the open ehannel.Karman numberκin uniform flow with steep slope is smaller than in non-uniform flow. Viscous sublayer thickness、 buffer layer scope in S_2 water surface profile are both smaller than in S_1 water surface profile. A unified formula of velocity distribution in an open water channel with steep slope is testified. |
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| Keywords: | open channel steep slope velocity distribution non-uniform flow |
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