An Effect of Air Content on the Occurrence of Cavitation

[+] Author and Article Information
J. W. Holl

Ordnance Research Laboratory, The Pennsylvania State University, University Park, Pa.

J. Basic Eng 82(4), 941-945 (Dec 01, 1960) (5 pages) doi:10.1115/1.3662809 History: Received November 30, 1959; Online November 04, 2011


The simultaneous occurrence of vaporous and gaseous cavitation on hydrofoils is considered. The experimental results show that gaseous cavitation occurs at much higher ambient pressures than that for the vaporous cavitation resulting in desinent-cavitation numbers twice the minimum-pressure coefficient of the hydrofoil. The analysis indicates that the difference between the desinent-cavitation number for the gaseous cavitation and that for the vaporous cavitation is proportional to the dissolved air content and inversely proportional to the square of the velocity.

Copyright © 1960 by ASME
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