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Numerical analysis of basic base-ventilated supercavitating hydrofoil sections

Citation

Pearce, BW and Brandner, PA, Numerical analysis of basic base-ventilated supercavitating hydrofoil sections, Journal of Engineering for the Maritime Environment, 299, (3) pp. 291-302. ISSN 2041-3084 (2015) [Refereed Article]

Copyright Statement

Copyright 2013 IMechE

DOI: doi:10.1177/1475090213518195

Abstract

A numerical analysis of the inviscid flow over base-ventilated intercepted hydrofoils is presented. The low-order, non-linear boundary element formulation used is described along with the significant issues concerning the modelling of supercavities with this method. The use of transom-mounted interceptors is well established for the manoeuvring and trim control of high-speed vessels. The flow field over a forward-facing step at the trailing edge of a blunt-based hydrofoil section, with consequent cavity detachment from the outer edge of the step, is similar to that of the transom-mounted interceptor operating at high speed with free surface detachment from the outer edge. Due to this similarity, the term ‘intercepted’ hydrofoil is used to describe this arrangement. The results presented show that a number of geometric parameters, in particular thickness, leading-edge radius and trailing-edge slope, have a significant effect on the hydrodynamic performance of base-ventilated intercepted hydrofoils.

Item Details

Item Type:Refereed Article
Keywords:supercavitation, ventilation, high-speed hydrofoil, interceptor, boundary element method
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Ship and Platform Hydrodynamics
Objective Division:Manufacturing
Objective Group:Transport Equipment
Objective Field:Nautical Equipment (excl. Yachts)
Author:Pearce, BW (Dr Bryce Pearce)
Author:Brandner, PA (Professor Paul Brandner)
ID Code:89449
Year Published:2015 (online first 2014)
Web of Science® Times Cited:2
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2014-03-05
Last Modified:2017-11-03
Downloads:0

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