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RESEARCH PAPERS

Viscous Effects in the Inception of Cavitation

[+] Author and Article Information
V. H. Arakeri

Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India

Allan Acosta

Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California

J. Fluids Eng 103(2), 280-287 (Jun 01, 1981) (8 pages) doi:10.1115/1.3241733 History: Received February 11, 1980; Online October 26, 2009

Abstract

The inception of cavitation in the steady flow of liquids around bodies is seen to depend upon the real fluid flow around the bodies as well as the supply of nucleating cavitation sources—or nuclei—within the fluid. A primary distinction is made between bodies having a laminar separation or not having a laminar separation. The former group is relatively insensitive to the nuclei concentration whereas the latter is much more sensitive. Except for the case of fully separated wake flows and for gaseous cavitation by diffusion the cavitation inception index tends always to be less than the magnitude of the minimum pressure coefficient and only approaches that value for high Reynolds numbers in flows well supplied with nuclei.

Copyright © 1981 by ASME
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