一种新型溢流坝面结构的消能效果数值模拟研究  

Numerical Simulation of Energy Dissipation Effect of A New Type of Overflow Dam Surface Structure

作　　者：秦鹏 励泽 吴钧辉 祝银玥 叶晓帆 郦肖雪 QIN Peng;LI Ze;WU Jun-hui;ZHU Yin-yue;YE Xiao-fan;LI Xiao-xue(College of Hydraulic and Environmental Engineering,Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,China;Key Laboratory for Technology in Rural Water Management for Zhejiang Province,Hangzhou 310018,China;College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]浙江水利水电学院水利与环境工程学院,浙江杭州310018 [2]浙江省农村水利水电资源配置与调控关键技术重点实验室,浙江杭州310018 [3]河海大学水利水电学院,江苏南京210098

出　　处：《水电能源科学》2021年第6期77-80,共4页Water Resources and Power

基　　金：浙江省水利厅科研基金(RC1837);国家级大学生创新训练计划基金(201911481001,202011481001);浙江省新苗人才计划基金(2019R423005,2020R423001,2020R423002)。

摘　　要：针对高坝水头高、下泄水流能量大而传统坝体消能效果较差、工程下游河道冲刷严重的问题,设计研发了一种包含分道挑流结构的新型溢流坝面,采用Flow-3D软件对其挑流消能效果进行水动力数值模拟,并与传统溢流坝面结构消能效果进行对比分析。结果表明,新型溢流坝面结构通过改变下泄水流流态分布,能有效降低水流流速,减小对下游河道的冲刷,为大坝高效挑流消能提供了新思路。In view of the engineering problems of high dam height head,large discharge energy,poor energy dissipation effect of the traditional dam body,and serious erosion of the downstream channel of the project,a new type of overflow dam surface including a split channel spur structure was designed and developed.The Flow-3 Dsoftware performed hydrodynamic numerical simulation on the energy dissipation of its sloshing.Compared with the energy dissipation effect of the traditional overflow dam surface structure,the results show that the new overflow dam face structure can effectively reduce the flow velocity and reduce the scouring of the downstream channel by changing the flow pattern of discharge release,which provides a new idea for the dam’s efficient flow and energy dissipation.

关 键 词：溢流坝面 分道挑流结构 消能 数值模拟 

分 类 号：TV85[水利工程—水利水电工程]