| 复式断面边界剪切应力分布规律研究 |
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| 引用本文： | 胡春宏,吉祖稳. 复式断面边界剪切应力分布规律研究[J]. 泥沙研究, 1999, 0(6): 52-55 |
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| 作者姓名： | 胡春宏 吉祖稳 |
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| 作者单位： | 中国水利水电科学研究院,北京,100044 |
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| 基金项目： | 国家自然科学基金，水利部资助 |
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| 摘 要： | 在复式断面明渠中，由于存在滩槽水流动量的交换，改变了边界剪切应力的分布规律，进而影响滩槽阻力和输水能力。本文利用作者实测的剪切应力分布资料，通过与矩形明渠边界剪切应力分布的对比，对手昨式断面边界剪切应力分布的特征进行了分析，建立了滩槽平均边界剪切应力与水深的关系，为复式断面水流结构及输水能力的研究打下了基础。
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| 关 键 词： | 复式断面 边界剪切应力 主槽 滩地 |
Distribution of Boundary Shear Stress in Compound Cross-section |
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| HU Chun-hong,JI Zu-wen. Distribution of Boundary Shear Stress in Compound Cross-section[J]. Journal of Sediment Research, 1999, 0(6): 52-55 |
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| Authors: | HU Chun-hong JI Zu-wen |
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| Affiliation: | China institute of water resources and hydropower research |
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| Abstract: | Compared with single channel,distributions of boundary shear stress are changed by the momentum transfer between main channel and floodplains.So,the frictional resistance and the sediment carrying capacity of flow are also changed for the main channel and floodplains.Some characteristics of shear stress are analyzed by the experiment data,and some relations between relative depth and average shear stress are obtained. |
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| Keywords: | compound channel boundary shear stress main channel floodplain |
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