止水点位于堰顶下游的弧形闸门流量系数试验研究  

Experimental Study of the Discharge Coefficient of Radial Gate with Its Water Stop Point Located Downstream of the Weir Crest

作　　者：杨艳 周劲峰 句亚伟 赵思汗 曹长冲 李丹[2] YANG Yan;ZHOU Jingfeng;JU Yawei;ZHAO Sihan;CAO Changchong;LI Dan(China Three Gorges International Corporation,Beijing 100033,China;School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]三峡国际能源投资集团有限公司,北京100033 [2]武汉大学水利水电学院,湖北武汉430072

出　　处：《水电与新能源》2024年第6期12-14,共3页Hydropower and New Energy

摘　　要：当弧形闸门止水点位于曲线实用堰堰顶下游时,闸孔出流的流量系数没有可参考的理论或经验公式进行计算。为此选用理论分析和物理实验方法,建立曲线实用堰和闸门的正态模型,测量不同开度条件下水位流量关系,并分析闸孔出流流量系数与相对开度之间的关系。此成果既可用于评估闸孔出流的泄流能力,也可为水库闸门调度方案的制定提供依据。When the water stop point of a radial gate is located downstream of the curved practical weir crest,there is no theoretical or empirical formula to calculate the discharge coefficient of the gate.Therefore,theoretical analysis and physical experiment are carried out by establishing a physical model of the weir and the gate to measure the relationship between the water level and the discharge flow under different gate opening conditions.The relationship between the discharge coefficient and the relative opening of the gate is analyzed.The results can be used to evaluate the discharge capacity of the gate and also provide useful basis for the development of reservoir gate dispatching plans.

关 键 词：实用堰 弧形闸门 流量系数 模型试验 

分 类 号：TV663[水利工程—水利水电工程]