高水头大流量拱坝水垫塘水动力特性数值模拟  

Numerical Simulation Study on Hydrodynamic Characteristics of High Head and Large Flow Arch Dam Plunge Pool

作　　者：侯春尧[1] 毛延翩[1,2] 张洪毅 刘璐瑶 何文艳 谢辉 肖江滔 HOU Chunyao;MAO Yanpian;ZHANG Hongyi;LI Luyao;HE Wenyan;XIE Hui;XIAO Jiangtao(China Yangtze Power Co.,Ltd.,Yichang 443002,China;State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China;Tianfu Yongxing Laboratory,Chengdu 610217,China;Sichuan Energy Internet Research Institute,Tsinghua University,Chengdu 610071,China)

机构地区：[1]中国长江电力股份有限公司,湖北宜昌443002 [2]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [3]天府永兴实验室,四川成都610217 [4]清华四川能源互联网研究院,四川成都610071

出　　处：《水电与新能源》2024年第11期1-5,共5页Hydropower and New Energy

基　　金：国家自然科学基金区域创新发展联合基金(U21A20157);中国长江电力股份有限公司科研项目资助(Z412202010)。

摘　　要：高拱坝泄洪过程具有高水头、大流量以及高流速等特点,对水垫塘结构安全提出了更高要求。为分析高拱坝泄洪对水垫塘地板的影响,采用标准k-ε紊流模型并借助几何重构格式的VOF法追踪水垫塘内自由水面,模拟结果与实测结果相吻合。结合水垫塘底板压力分布与湍流粘度模拟结果,分析了高拱坝泄洪消能过程中水垫塘底板的水力特性以及其对磨蚀损伤的潜在影响。The flood discharge process of high arch dams is of the characteristics of high water head,large flow rate and high flow velocity,which put higher requirements on the safety of the plunge pool structure.Numerical simulations are carried out to analyze the impact of the flood discharge process of high arch dams on the bottom plate of the plunge pool,in which the standard k-εturbulence model is adopted and the VOF method in geometric reconstruction format is used to track the free water surface in the plunge pool.The simulation results are consistent with the measured data.Based on the simulation results of the pressure distribution and the turbulent viscosity on the bottom plate of the plunge pool,the hydraulic characteristics on the bottom plate during the flood discharge and energy dissipation process and its potential impact on erosion damage are analyzed.

关 键 词：高拱坝 水垫塘 数值模拟 标准k-ε紊流模型 

分 类 号：TV642.4[水利工程—水利水电工程]