威远江水电站溢洪道挑流鼻坎数值模拟研究  

Numerical simulation of flip bucket of spillway at Weiyuanjiang Hydropower Station

作　　者：王继保[1] 张守磊[1] 

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《人民长江》2010年第8期92-95,共4页Yangtze River

摘　　要：针对威远江水电站岸边式溢洪道挑流消能存在的问题,采用RNGk-ε双方程模型、非结构网格与自适应局部网格加密的方法,模拟湍流,利用流体体积分数法(VOF)确定自由水面线,成功地对溢洪道挑流鼻坎挑流进行了三维紊流数值模拟。对挑流鼻坎的修改方案进行了研究,经过计算提出了较优方案,所提方案得到了物理模拟的验证,为威远江水电站设计与优化提供了可靠的设计依据。In light of the problems of bucket type energy dissipation in bank-run spillway at Weiyuanjiang Hydropower Station on the Weiyuan River,the three-dimensional numerical simulation of spillway flip bucket turbulent flow is successfully conducted by the use of RNG k-ε double-equation model,unstructured mesh and self-adaptive local mesh refinement method.We use VOF method to determine water profile of free surface.The modified schemes of flip bucket are researched and the optimized one,which has been verified by physical model,is proposed.It provides a reliable basis for the design and optimization of Weiyuanjiang Hydropower Station.

关 键 词：溢洪道 挑流鼻坎 数值模拟 威远江水电站 

分 类 号：TV651.1[水利工程—水利水电工程]