| 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 |
| 挟沙水流紊动扩散系数的研究 |
| Study on turbulence diffusion coefficient of sediment-laden flow |
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| DOI： |
| 中文关键词: 紊动扩散 雷诺应力 F-分布 |
| 英文关键词: turbulence diffusion eynolds stress F-distribution |
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| 摘要点击次数: 2093 |
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| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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