台阶式溢流坝三维水流数值模拟  

Three-Dimensional Numerical Simulation of Flow over Stepped Spillway Dams

作　　者：王群芝 肖露 朱光明 Wang Qunzhi;Xiao Lu;Zhu Guangming(POWERCHINA Guiyang Engineering Corporation Limited,Guiyang 550081,Guizhou;Guizhou Branch of Shandong Provincial Water Resources Survey and Design Institute Co.,Ltd.,Guiyang 550081,Guizhou)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081 [2]山东省水利勘测设计院有限公司贵州分公司,贵州贵阳550081

出　　处：《陕西水利》2025年第1期109-112,共4页Shaanxi Water Resources

摘　　要：数值模拟是研究台阶式溢流坝水流的一种重要手段,运用FLOW-3D软件进行台阶式溢流坝三维水流数值模拟,通过流体通量监测面监测实际过流量,验证大坝的过流能力。模拟坝面及消力池内水流流态,计算反弧段末端的消能效率,验证台阶尺寸的合理性。通过光滑溢流坝面和台阶式溢流坝面下游消力池长度计算,台阶式消能可有效减小消力池长度,节省工程投资,结果可为其它工程泄洪消能设计提供参考。Numerical simulation is an essential method for studying theflow over stepped spillway dams.Using FLOW-3D software,a three-dimensional numerical simulation of the flow over a stepped spillway dam was conducted.The actual flow rate was monitored through flux monitoring surfaces to verify the flow capacity of the dam.The simulation also examined the flow patterns on the dam face and in the stilling basin,calculating the energy dissipation efficiency at the end of the reverse arc section to validate therationality of the step dimensions.By comparing the length ofthe stlling basin downstream of a smooth spillway face with that of a stepped spllway face,it was found that stepped energy dissipation can effectively reduce the length of the stiling basin,thereby saving on engineering investment.The results can serve as a reference for the design of energy dissipation for flood discharge in other projects.

关 键 词：台阶式溢流坝 数值模拟 消能 FLOW-3D 

分 类 号：TV652.1[水利工程—水利水电工程]