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The effect of vapour cavitation occurrence on the hydrodynamic performance of an intercepted base-ventilated hydrofoil

Citation

Pearce, BW and Brandner, PA, The effect of vapour cavitation occurrence on the hydrodynamic performance of an intercepted base-ventilated hydrofoil, Proceedings of the 18th Australasian Fluid Mechanics Conference, 3-7 December, Launceston, Tasmania, Australia, pp. 1-4. ISBN 9780646583730 (2012) [Refereed Conference Paper]

Copyright Statement

Copyright 2012 Leishman Associates

Official URL: http://www.proceedings.com/17862.html

Abstract

Experimental results of the hydrodynamic performance of a novel high-speed hydrofoil concept are presented. The hydrofoil is symmetric, wedge shaped and makes use of a mechanism for producing a forward-facing step on either upper or lower surfaces to induce a ventilated supercavity and produce bi-directional lift. The hydrofoil remains fully-wetted at low incidence with leading edge partial vapourous cavitation and eventual suction side supercavity formation from the leading edge with incidence increase. Cavitation hysteresis as incidence is reduced back from the latter condition is significant. The corresponding detrimental effect on the resulting hydrodynamic performance is presented and shows that there is a practical upper incidence limit, analogous to stall in single phase flow, in the application of this novel hydrofoil concept.

Item Details

Item Type:Refereed Conference Paper
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Maritime Engineering not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Engineering
Author:Pearce, BW (Dr Bryce Pearce)
Author:Brandner, PA (Associate Professor Paul Brandner)
ID Code:82625
Year Published:2012
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2013-02-08
Last Modified:2014-08-12
Downloads:0

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