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Some experiments on cavities behind disks

Published online by Cambridge University Press:  28 March 2006

G. E. Gadd  and
S. Grant
G. E. Gadd
Affiliation:
Ship Division, National Physical Laboratory, Teddington, Middlesex
S. Grant
Affiliation:
Ship Division, National Physical Laboratory, Teddington, Middlesex
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Abstract

Measurements of cavities behind disks in a water tunnel show that at high enough speeds the cavity pressure is not more than 30–40% higher than water-vapour pressure, even when at atmospheric pressure the tunnel water is nearly saturated with air. No other hard conclusions can be drawn from the investigations, which showed many puzzling features, discussed below. It is hoped, however, that the qualitative discussion may prove useful to theoreticians who may seek to improve existing mathematical models of cavitation by taking a more realistic account of the physics of the flow.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 23 , Issue 4 , December 1965 , pp. 645 - 656
Copyright
© 1965 Cambridge University Press

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References

Cox, R. N. & Clayden, W. A. 1956 Air entrainment at the rear of a steady cavity. In Symp. on Cavitation in Hydrodynamics, National Physical Laboratory, Sept. 1955. London: H.M. Stationary Office.
Silverleaf, A. 1960 Basic design of the NPL no. 2 water tunnel. NPL Ship Division, Ship Report no. 15.Google Scholar
Silverleaf, A. & Berry, L. W. 1962 Propeller cavitation as influenced by the air content of the water. NPL Ship Division, Ship Report no. 31.Google Scholar