Simple Rules for Cavitation Instabilities in Turbomachinery

Tsujimoto, Yoshinobu (2001) Simple Rules for Cavitation Instabilities in Turbomachinery. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA.

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Abstract

The present paper focuses on the correlation of cavitation instabilities in turbomachinery with steady cavity length, or a parameter sigma/(2*alpha). A linear stability analysis shows that various types of cavitation instabilities start to occur when the steady cavity length becomes larger than 65% of the blade spacing. Experimental evidence for this will be reviewed. If we apply this rule in a cross flow plane, the effects of leading edge sweep to suppress cavitation instabilities can be reasonably explained by using a corrected parameter in cross flow. This will also be addressed.

EPrint Type:	Conference or Workshop Item (Lecture)
Subjects:	All Records Invited Lectures
ID Code:	337
Deposited By:	AKIRA FUJII
Deposited On:	03 June 2001
Record Number:	CAV2001:lecture.006
Official Persistent URL:	http://resolver.caltech.edu/CAV2001:lecture.006
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