In the feasibility study stage of the Yangtze-Hanjiang River Diversion Project,it is proposed to use a large di-ameter piston valve as the flow regulating equipment for the pressurized self flowing water delivery system.The water flow field and the hydraulic characteristics of differant discharges inside the piston valve are analyzed based on CFD software numerical simulation.The Q-H characteristic curve and valve opening water loss flow curve of the piston type valve un-der various design conditions are obtained.The numerical simulation results indicate that large-diameter piston valve can meet the flow regulation requirements for this project.
关键词
引江补汉/活塞阀/水力特性/数值分析
Key words
Yangtze-Hanjiang River Diversion Project/piston valve/hydraulic characteristics/numerical analysis
维普
万方数据