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Effect of Air Injection on the Cloud Cavitation of a Hydrofoil

Reisman, G. E. and Duttweiler, M. E. and Brennen, C. E. (1997) Effect of Air Injection on the Cloud Cavitation of a Hydrofoil. In: 1997 ASME Fluids Engineering Division Summer Meeting, 22-26 June 1997, Vancouver, British Columbia, Canada. http://resolver.caltech.edu/CaltechAUTHORS:REIfedsm97

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Abstract

This paper describes experiments investigating the effects of air injection on the cloud cavitation of an oscillating hydrofoil. The effects of continuous air injection were investigated using two different hydrofoils. Measurements of the acoustic pressure were made on the downstream test section floor and on the surface of one of hydrofoils, and the extent of noise reduction provided by air injection at various volume flow rates was determined. The acoustic surface pressure measurements were also correlated with visual observations made using high speed motion pictures of the cloud cavitation. Thus the effects of continuous air injection on specific cavitation structures could be identified. In addition, the effectiveness of pulsed air injection in achieving greater reductions in cavitation noise at volume flow rates equal to those used in continuous air injection experiments was investigated.


Item Type:Conference or Workshop Item (Paper)
Additional Information:This research program was supported by the Office of Naval Research under grant number N00014-91-J-1295. The authors also greatly appreciate the advice and encouragement of Professor Allan Acosta and the help of Roberto Zenit, Don Kwak and Amir Alagheband.
Record Number:CaltechAUTHORS:REIfedsm97
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:REIfedsm97
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:144
Collection:CaltechAUTHORS
Deposited By: Christopher Brennen
Deposited On:29 Oct 2004
Last Modified:26 Dec 2012 08:39

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