%A YAN Hong-qin, CHEN Song-shan, GE Qiang, LI Yan-jun, YAN Deng-feng %T Hydraulic experiment and numerical simulation of campaniform inlet duct %0 Journal Article %D 2007 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969/j.issn.1674-8530.2007.05.015 %P 55-60 %V 25 %N 5 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_1387.shtml} %8 2007-09-25 %X In combination with the design of campaniform inlet duct in a certain pumping station of the East Line of South-to-North Water Transfer Project(SNWTP),three different shape suction chamber hydraulic models and experimet apparatus were designed for testing on hydraulic loss.Considering different suction chamber¡äs shape,on the condition of well-distributed flow and offset flow,the Reynolds time-averaged Navier-Stokes equations with RNG turbulent model and SIMPLER algorithm were studied to simulate the three-dimensional internal flow of the inlet duct.The conclusion is that the "¦Ø" shape suction champer has excellent hydraulic characteristic in different inlet flow conditions.Its hydraulic loss is small and velocity-averaged streamline angles on special cross sections are approximately 90¡ã.It is for an idealshape suction chamber of campaniform inlet duct.pumping station;campaniform inlet duct;hydraulic experiment;CFD