曲线型实用堰弧形门闸孔出流流量系数分析  

On the Discharge Coefficient of Radial Gate Outlets on Curved Practical Weir

作　　者：田静[1] 顾长宽 郭汉驰 薛海 TIAN Jing;GU Changkuan;GUO Hanchi;XUE Hai(Department of Hydraulic Engineering,Yellow River Conservancy Technical Institute,Kaifeng 475004,China;Kaifeng Hydrology and Water Resources Survey Bureau,Kaifeng 475003,China;Shenzhen Guangming Construction Group No.1 Construction Engineering Co.,Ltd.,Shenzhen 518083,China;School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]黄河水利职业技术学院水利工程学院,河南开封475004 [2]河南省开封市水文水资源勘测局,河南开封475003 [3]深圳市光明建工第一建设工程有限公司,广东深圳518083 [4]华北水利水电大学水利学院,河南郑州450046

出　　处：《水电与新能源》2024年第9期6-8,29,共4页Hydropower and New Energy

基　　金：国家自然科学基金重点项目(41930643)。

摘　　要：针对曲线型实用堰上弧形门闸孔出流流量系数经验方法确定的数值偏小问题,基于凯巴萨水电站溢流坝模型试验,采用最小二乘拟合法对实用堰上弧形门闸孔出流的流量系数进行分析,分段建立流量系数μ与闸门相对开启高度e/H的关系式表明,拟合获取的流量系数与实测值相对误差绝对值最大4.14%,平均值1.48%,预测精度较高。It is found that the discharge coefficient of radial gate outlets on curved practical weir determined by the empirical method is relatively small.Therefore,based on the model test results of the overflow dam in Caculo-Cabaca Hydropower Station,the discharge coefficient of radial gate outlets on practical weir is analyzed with the least square fitting method.The relationship between the discharge coefficient and the relative opening height of the gate is obtained in sections.It is shown that the fitted discharge coefficient is of high accuracy as the absolute error between the fitted and the measured values is 4.14%the maximum and 1.48%in the average.

关 键 词：闸孔出流 流量系数 曲线型实用堰 弧形闸门 模型试验 

分 类 号：TV663.2[水利工程—水利水电工程]