| 浑水异重流孔口出流泄沙规律 |
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| 引用本文： | 范家骅. 浑水异重流孔口出流泄沙规律[J]. 水利学报, 2007, 38(9): 1073-1079 |
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| 作者姓名： | 范家骅 |
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| 作者单位： | 中国水利水电科学研究院,泥沙研究所,北京,100044 |
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| 摘 要： | 对垂直壁孔口和底孔出流的室内试验资料,以及三门峡水库、官厅水库的现场异重流孔口泄沙资料进行分析,得到出流含沙量与孔口高度和泄出层厚度的经验关系曲线。此关系曲线可用于估算在一定条件(孔口流量、异重流含沙量、孔口高度)下的出口含沙量。最后分析了孔口距底高度对浑水异重流孔口出流的影响,提出设计多沙河流上水库浑水异重流孔口泄沙的孔口位置时应注意的要点。
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| 关 键 词： | 异重流孔口出流 选择性取水 孔口排沙 取水防沙 分层流 浑水异重流 |
| 文章编号： | 0559-9350（2007）09-1073-07 |
| 修稿时间： | 2006-05-26 |
Analysis on turbid density current outflow through outlets |
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| FAN Jia hua. Analysis on turbid density current outflow through outlets[J]. Journal of Hydraulic Engineering, 2007, 38(9): 1073-1079 |
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| Authors: | FAN Jia hua |
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| Affiliation: | China Institute of Water Resources and Hydropower Research, Beijing 100044, China |
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| Abstract: | Laboratory experimental results and field data from the Sanmenxia and Guanting Reservoirs for density current outflow through outlets were analyzed.A simple model describing the effect of outlet elevation on outflow concentration was suggested,and an empirical relationship between the outflow concentration and outlet elevation was established. The derived formula can be used to estimate the turbid density current outflow through outlets. |
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| Keywords: | turbid density current sediment outflow through outlet selective withdrawal |
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