| 挟沙水流紊动扩散系数的研究 |
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| 引用本文： | 谈广鸣,夏军强,郑邦民.挟沙水流紊动扩散系数的研究[J].水利学报,1998,29(12):0023-0028. |
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| 作者姓名： | 谈广鸣 夏军强 郑邦民 |
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| 作者单位： | 武汉水利电力大学河流工程系;武汉水利电力大学河流工程系;武汉水利电力大学河流工程系 |
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| 摘 要： | 本文通过理论分析，得到剪切紊流中紊动粘性系数υt(紊动扩散系数)沿水深服从F-分布，用于计算悬移质含沙量沿垂线分布与Rouse公式、张红武公式一致，规律符合实际，可用之于紊流计算与分析.
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| 关 键 词： | 紊动扩散 雷诺应力 F-分布 |
Study on turbulence diffusion coefficient of sediment-laden flow |
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| Tan Guangming,Xia Junqiang,Zheng Bangming.Study on turbulence diffusion coefficient of sediment-laden flow[J].Journal of Hydraulic Engineering,1998,29(12):0023-0028. |
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| Authors: | Tan Guangming Xia Junqiang Zheng Bangming |
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| Affiliation: | Wuhan University of Hydraulic and Electric Engineering |
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| Abstract: | Through theoretical analysis, this paper proposes the formula for diffusion coefficient in shear turbulent flow, which is described by F-distribution function over the flow depth. The vertical distribution of relative sediment concentration calculated by this formula is in agreement with Rouse's formula and Zhang Hongwu's formula. So it also can be used for computation for turbulent model. |
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| Keywords: | turbulence diffusion eynolds stress F-distribution |
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