引水隧洞交叉连接型式的三维数值模拟研究  

Three-dimensional numerical simulation study of cross-connections of diversion tunnels

作　　者：何彦利 He Yanli(Xinjiang Institute of Water&Hydropower Engineering Investigation,Design and Research,Urumchi830000,China)

机构地区：[1]新疆水利水电勘测设计研究院有限责任公司,新疆乌鲁木齐830000

出　　处：《吉林水利》2024年第3期14-19,23,共7页Jilin Water Resources

摘　　要：随着水利工程建设的需要,隧洞交叉连接的布置型式越来越普遍。某新建生态水电站发电洞采用隧洞交叉连接的布置方法,将已建泄洪洞与新建发电洞交叉连接。为深入研究此工程泄洪洞与发电洞交叉连接布置型式,提出两种隧洞交叉连接布置方案,并采用数值模拟的方法,对两种交叉连接布置方案进行三维数值计算,通过分析不同方案交叉连接段水流流态、流速、压强等水力特性,得出最优的隧洞交叉布置型式。本研究可为隧洞交叉连接的布置型式提供参考。Due to the needs of water conservancy project construction,the arrangement type of tunnel crossconnection is more and more common.A new ecological hydropower station power generation hole adopts the arrangement method of tunnel cross-connection,utilizing the existing flood relief hole and the newly built power generation hole to cross-connect.In order to study the cross-connection arrangement between the flood relief hole and the power generating hole in this project,two tunnel cross-connection arrangement schemes are proposed,and numerical simulation is used to carry out three-dimensional numerical calculations for the two cross-connection arrangement schemes,and the optimal tunnel cross-connection arrangement is derived by analyzing the hydraulic characteristics of the water flow pattern,velocity,and pressure at the cross-connection section of the different schemes.The study can provide a reference for the arrangement type of cross-connected tunnels.

关 键 词：数值模拟 交叉连接 水力特性 

分 类 号：TV135.2[水利工程—水力学及河流动力学]