数值模拟在东江电站前池体型优化中的应用  

The Application of Numerical Simulation for the Optimization Design of Dongjiang Forebay

作　　者：赵晓凤[1] 卢锦美 张劲松[1] 周研来[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]蕲春县水利建筑设计院,湖北黄冈435300

出　　处：《中国农村水利水电》2013年第3期133-136,144,共5页China Rural Water and Hydropower

基　　金：水利部公益性项目(201001002)

摘　　要：应用RNGk-ε双方程湍流模型,对东江电站上水库电站前池现状、拆除拦污栅支墩、降低拦沙坎、优化洲头边岸4种方案的水力特性进行数值模拟,分析了前池各类水工建筑物对前池流态的影响。结果表明,三维流场计算结果与模型实验及电站运行现状相符,优选出的前池水工建筑物的最佳布置方式,可有效改善前池流态和提高电站发电效益。Numerical simulations are conducted with a RNG two-equation turbulence model to simulate the hydraulic characteristics in forebay of Dongjiang Power Station. The effects of different design schemes （the former scheme, the demolishing trash-rack buttress scheme, the reducing sediment retaining weir scheme, the optimizing shores scheme） on flow state are analyzed. It is shown that the computed results of the experimental data consisted with measured results of the physical model test and the figure optimization de sign is proposed to improve the flow state as well as increase the power generation benefit.

关 键 词：电站前池 K-Ε紊流模型 水力特性 体型优化 

分 类 号：TV675[水利工程—水利水电工程] S277.9[农业科学—农业水土工程]