Experimental Study and Numerical Simulation of Cavity Oscillation in a Diffuser with Swirling Flow

The cavity oscillation with swirling flow in hydraulic power generating systems was studied by a simple experiment and numerical simulation. Several types of fluctuation were observed in the experiment, including the cavitation surge caused by the diffuser effect and the vortex precession by the swi...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of fluid machinery and systems Vol. 3; no. 1; pp. 80 - 90
Main Authors Chen, Chang-Kun, Nicolet, Christophe, Yonezawa, Koichi, Farhat, Mohamed, Avellan, Francois, Miyazawa, Kazuyoshi, Tsujimoto, Yoshinobu
Format Journal Article
LanguageKorean
Published 2010
Subjects
diffuser effect
swirl effect
Draft tube surge
cavitation
Online AccessGet full text

Cover

More Information
Summary:The cavity oscillation with swirling flow in hydraulic power generating systems was studied by a simple experiment and numerical simulation. Several types of fluctuation were observed in the experiment, including the cavitation surge caused by the diffuser effect and the vortex precession by the swirling flow. Both cavitation surge and vortex precession were simulated by CFD. Detailed flow structure was examined through flow visualization and CFD.
Bibliography:KISTI1.1003/JNL.JAKO201020065114152
ISSN:1882-9554