A Review of the Dynamics of Cavitating Pumps

Creators: Brennen, C. E.

Abstract

This paper presents a review of some of the recent developments in our understanding of the dynamics and instabilities caused by cavitation in pumps. Focus is placed on presently available data for the transfer functions for cavitating pumps and inducers, particularly on the compliance and mass flow gain factor which are so critical for pump and system stability. The resonant frequency for cavitating pumps is introduced and contexted. Finally emphasis is placed on the paucity of our understanding of pump dynamics when the device or system is subjected to global oscillation.

Additional Information

Published under licence by IOP Publishing Ltd. The author wishes to acknowledge the extensive and valuable support provided by the NASA George Marshall Space Flight Center, Huntsville, AL, during much of the research discussed in this paper. I also owe a great debt to my colleague and collaborator Allan Acosta as well as to numerous students at Caltech, particularly S.L.Huang and David Braisted. The numerous constructive discussions with long time associates Loren Gross, Henry Stinson, Sheldon Rubin, Jim Fenwick, Tom Zoladz, Kenjiro Kamijo, Yoshi Tsujimoto and Shusuke Hori are gratefully acknowledged. I also appreciate the support of JAXA, the Japan Aerospace Exploration Agency, in sponsoring the visit of Shusuke Hori to Caltech.

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Published - 1755-1315_15_1_012001.pdf

Submitted - ChinaPaper1.pdf

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