导流洞出口淹没水流判定方法的分析研究  

Analysis and Research on Judgment Method of Submerged Flow at Diversion Tunnel Outlet

作　　者：周顺文 王小波 莫奎 Zhou Shunwen;Wang Xiaobo;Mo Kui

机构地区：[1]中国电建集团成都勘测设计研究院有限公司,四川成都610072

出　　处：《吉林水利》2021年第4期31-34,共4页Jilin Water Resources

基　　金：中国电建集团成都院青年创新基金;导流洞水力学特性与对冲消能效果研究(P297-2015)。

摘　　要：采用理论分析的方法,对导流洞出口淹没水流的判定方法进行了分析研究,提出采用出口水流产生淹没水跃作为判定导流洞出口水流是否为淹没出流的方法,并讨论提出出口水流收缩水深、水跃共轭水深的计算方法。通过叶巴滩水电站、锦屏一级水电站两个工程实例进行验证,模型试验与计算判定结果相吻合。Using the method of theoretical analysis,the method for determining the submerged flow at the outlet of the diversion tunnel is analyzed and studied.It is proposed that the submerged water jump produced by the outlet water flow is used as a method to determine whether the water flow at the outlet of the diversion tunnel is a submerged outflow,and the calculation method of the outlet water shrinkage depth and the conjugate water depth of the hydraulic jump is discussed.Two engineering examples of Yebatan Hydropower Station and Jinping I Hydropower Station were verified,and the model test was consistent with the calculation results.It can provide reference for the design of similar hydropower projects.

关 键 词：导流洞 出口水流 淹没水流 水跃 收缩水深 共轭水深 

分 类 号：TV135.2[水利工程—水力学及河流动力学]