| 明渠水力半径分割线及边界平均剪切应力 |
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| 引用本文： | 申红彬,张小峰,乔伟. 明渠水力半径分割线及边界平均剪切应力[J]. 水力发电学报, 2011, 30(1): 44-48 |
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| 作者姓名： | 申红彬 张小峰 乔伟 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 摘 要： | 从明渠水流过水断面上水体微团能量二维输送权重角度出发,推导出了水力半径分割线微分方程式;通过求解其近似解,得到了水力半径分割线的二次近似表达式;通过积分运算确定了明渠边壁与床面平均剪切应力的计算表达式,并与Knight等多家明渠边壁、床面平均剪切应力试验数据进行了比较,结果表明两者较为符合.
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| 关 键 词： | 水力学 明渠水流 水力半径分割线 能量输送 边界平均剪切应力 |
Partition curve of hydraulic radius and average sidewall and bed shear stresses in open-channel flows |
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| SHEN Hongbin , ZHANG Xiaofeng , QIAO Wei. Partition curve of hydraulic radius and average sidewall and bed shear stresses in open-channel flows[J]. Journal of Hydroelectric Engineering, 2011, 30(1): 44-48 |
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| Authors: | SHEN Hongbin ZHANG Xiaofeng QIAO Wei |
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| Affiliation: | SHEN Hongbin,ZHANG Xiaofeng,QIAO Wei(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072) |
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| Abstract: | |
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| Keywords: | hydraulics open-channel flows partition curve of hydraulic radius energy transmission average sidewall and bed shear stresses |
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