水利学报2012,Vol.43Issue(5):623-630,8.
双浅水垫消力池水力特性的数值模拟与试验研究
Numerical simulation and experimental investigation on stilling basin with double shallow-water cushions
摘要
Abstract
A new type of stilling basin with double shallow-water cushions was proposed based on a model for the Luding Hydropower Project. The hydraulic performances of the new type stilling basin such as flow pattern, water surface profile, velocity and pressure distributions were studied by means of numerical simu- lation using 3D RNG k-ε turbulenee model, which are in good agreement with the experimental data. Both numerical and experimental results indicate that the proposed double shallow water cushions can make full advantages of water-cushion to reduce the velocity near the bottom effectively, redistribute the pressure on stilling basin floor, and significantly improve the energy dissipation rate.关键词
浅水垫消力池/RNGk-ε紊流模型/数值模拟/消能Key words
stilling basin with shallow-water cushion/RNG k-ε turbulence model/numerical simulation/energy dissipation分类
建筑与水利引用本文复制引用
刘达,李连侠,黄本胜,廖华胜..双浅水垫消力池水力特性的数值模拟与试验研究[J].水利学报,2012,43(5):623-630,8.基金项目
国家自然科学基金资助项目(51079091)致谢:本文试验工作得到沈焕荣副教授和易文敏讲师的指导和帮助,特此致谢. ()