Influence of 3D Guide Vanes on the Channel Vortices in the Runner of a Francis Turbine

It is known that the pressure fluctuation in the runner will become large when a Francis turbine operates at the low flow rate and high head. One of the reasons is the occurrence of channel vortices, which are caused by the three-dimensional flow separating from the suction side of runner blades. In...

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Bibliographic Details
Main Authors: Shuhong LIU, Liang ZHANG, Yulin WU, Xianwu LUO, Michihiro NISHI
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2006-12-01
Series:Journal of Fluid Science and Technology
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jfst/1/2/1_2_147/_pdf/-char/en