| 山区溢洪道挑距计算中流速系数确定方法的探讨 |
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| 引用本文： | 朱祖国,王均星,查双全.山区溢洪道挑距计算中流速系数确定方法的探讨[J].中国农村水利水电,2011(4). |
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| 作者姓名： | 朱祖国 王均星 查双全 |
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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： | 溢洪道挑距计算中,在单宽流量较小,水头落差较时,可借鉴溢流坝流速系数经验计算公式,应用于溢洪道流速系数计算中,继而推求挑距.结合工程实例,运用经验公式计算和模型试验相结合的方法,对各种计算流速系数的公式进行了比较分析,最终结论表明长委公式和湖南省院公式是较适用的.
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| 关 键 词： | 流速系数 挑距 溢洪道 模型试验 |
Research on the Efflux Coefficient in the Calculation of the Horizontal Length of Jet Flow in Spillways in Mountain Areas |
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| ZHU Zu-guo
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WANG Jun-xing
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ZHA Shuang-quan.Research on the Efflux Coefficient in the Calculation of the Horizontal Length of Jet Flow in Spillways in Mountain Areas[J].China Rural Water and Hydropower,2011(4). |
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| Authors: | ZHU Zu-guo WANG Jun-xing ZHA Shuang-quan |
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| Institution: | ZHU Zu-guo,WANG Jun-xing,ZHA Shuang-quan(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | While calculating the horizontal length of jet flow in the case of small discharge per unit width and large head drop,this paper refers to experienced formulae for calculating efflux coefficient in the overflow dam and applies them to the spillway.Based on specific projects,a comparative analysis of several typical experienced formulae has been made through calculation and model tests in this paper.Finally,a conclusion is reached that the experienced formulae recommended by Design Research Institute of Wate... |
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| Keywords: | efflux coefficient the horizontal length of jet flow spillway model test |
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