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Some observations of tip-vortex cavitation

Arndt, REA and Arakeri, VH and Higuchi, H (1991) Some observations of tip-vortex cavitation. In: Journal of Fluid Mechanics, 229 . 269 -289.

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Abstract

Cavitation has been observed in the trailing vortex system of an elliptic planform hydrofoil. A complex dependence on Reynolds number and gas content is noted at inception. Some of the observations can be related to tension effects associated with the lack of sufficiently large-sized nuclei. Inception measurements are compared with estimates of pressure in the vortex obtained from LDV measurements of velocity within the vortex. It is concluded that a complete correlation is not possible without knowledge of the fluctuating levels of pressure in tip-vortex flows. When cavitation is fully developed, the observed tip-vortex trajectory shows a surprising lack of dependence on any of the physical parameters varied, such as angle of attack, Reynolds number, cavitation number, and dissolved gas content.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Cambridge University Press.
Department/Centre: Others
Date Deposited: 30 Nov 2010 10:58
Last Modified: 30 Nov 2010 10:58
URI: http://eprints.iisc.ernet.in/id/eprint/34135

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