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.
出处
《人民长江》
北大核心
2010年第8期92-95,共4页
Yangtze River
关键词
溢洪道
挑流鼻坎
数值模拟
威远江水电站
spillway
flip bucket
numerical simulation
Weiyuanjiang Hydropower Station
作者简介
王继保，男，讲师，博士研究生，主要从事水力学及河流动力学的教学和科研工作。E—mail：wjbtina@ctgu．edu．cn
