Author(s): H Ruan; W L Liao; H G Fan; Q F Ji; H X Yang

Linked Author(s):

Keywords: Cascade flow; Guide vane; Pump-turbine; CFD simulation

Abstract: The flow types between the guide vanes have significant influence on the stability of a pump-turbine, especially when the guide vane opening is very small. In order to study the flow types between the adjacent vanes, the CFD simulation, which with the Reynolds Stress Model, of a cascade with three kinds of water foil were carried out, and a verification experiment about the cascade flow was conducted. The CFD simulation results indicated that the diffusion ratio and leading edge curvature ratio of the water foil are the important parameters which make the different flow types happened. Moreover, the experiment results show that the CFD simulation has a great agreement with it.

DOI: https://doi.org/10.1088/1755-1315/163/1/012071

Year: 2017