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| Hydraulic experiment and numerical simulation of campaniform inlet duct |
| YAN Hong-qin1, CHEN Song-shan2, GE Qiang3, LI Yan-jun4, YAN Deng-feng2 |
| 1.Hydraulic Engineering Science and Technology Consultation Limited Company of Jiangsu Province, Nanjing, Jiangsu 210029, China; 2.Hydraulic Science and Engineering College, Yangzhou University, Yangzhou, Jiangsu 225009, China; 3.Information Engineering College, Yangzhou University, Yangzhou, Jiangsu 225009, China; 4.Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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Abstract 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′s 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 "ω" 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°.It is for an idealshape suction chamber of campaniform inlet duct.pumping station;campaniform inlet duct;hydraulic experiment;CFD
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Received: 08 August 2013
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