Analysis of the phenomenon of inlet reverse flows in a pump-turbine using 3-D numerical techniques

Yi Qian*, Chuich Arakawa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

The purpose of this paper is to apply a developed three-dimensional CFD technology to predict the phenomenon of reverse flows created at the inlet during the pump operation of Francis type pump-turbines. The motions of the separation flows are predicted well by using a k-two equation turbulent models and a Reynolds stress model (RSM). The computational results such as the prediction of major flow patterns of the vortex on the sections of blade-to-blade, reverse flow region near the shroud surface, as well as pressure distributions on the blade surfaces are analyzed in this paper. In order to confirm the computational results, the flow measurements are carried out at the pump inlet under several flow rates.

Original languageEnglish
Title of host publicationProceedings of the ASME Fluids Engineering Division Summer Meeting, 1997
Subtitle of host publicationFEDSM '97
Place of PublicationNew York, NY
PublisherASME
Number of pages7
Volume11
ISBN (Print)9780791812372
Publication statusPublished - 1997
Externally publishedYes
Event1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97 - Vancouver, Canada
Duration: 22 Jun 199726 Jun 1997

Conference

Conference1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97
CountryCanada
CityVancouver
Period22/06/9726/06/97

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