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
Publication:	Journal of Fluid Mechanics
Publisher:	Cambridge University Press
Additional Information:	Copyright of this article belongs to Cambridge University Press.
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	30 Nov 2010 10:58
Last Modified:	06 Oct 2018 14:09
URI:	http://eprints.iisc.ac.in/id/eprint/34135

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