Suppression of Sheet Cavitation Inception by Water Discharge Through Slit

[+] Author and Article Information
Hiroharu Kato, Hajime Yamaguchi, Shinzo Okada, Kohei Kikuchi, Masaru Miyanaga

Department of Naval Architecture, University of Tokyo, Hongo, 7-3-1, Bunkyo, Tokyo 113, Japan

J. Fluids Eng 109(1), 70-74 (Mar 01, 1987) (5 pages) doi:10.1115/1.3242619 History: Received October 15, 1986; Online October 26, 2009


This paper studies experimentally the suppression effect of water discharge on incipient and developed sheet cavitation on a hemispherical headform. The water is discharged tangentially from a slit upstream of a cavitating region into the boundary layer on the headform. Increasing the discharge rate, the length of the sheet cavity becomes shorter and then the cavity is suppressed completely. Flow visualization test shows the generation of wavy motion in the boundary layer which disturbs the separated zone, resulting in disappearance of the sheet cavitation.

Copyright © 1987 by ASME
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