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Limitations on 2D Super-cavitating Hydrofoil Performance

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Pearce, BW ORCID: 0000-0003-2189-5598 and Brandner, PA 2007 , 'Limitations on 2D Super-cavitating Hydrofoil Performance', paper presented at the 16th Australasian Fluid Mechanics Conference, 2-7 December, 2007, Crown Plaza, Gold Coast, Australia.

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Abstract

Classical super-cavitating hydrofoil performance predictions have been based on linearised potential theory for zero cavitation number. More rationalised predictions of super-cavitating hydrofoil performance have been evaluated using a non-linear boundary element formulation. Comparisons are made between flat-plate, circular-arc, and NACA 4-digit camber line wetted surface profiles. Limitations of super-cavitating foil performance are defined in terms of minimum cavity length to avoid instability and the minimum cavity clearance from the hydrofoil wetted surface. The dependence of these limitations on hydrofoil wetted surface profile, incidence and cavitation number are derived.

Item Type: Conference or Workshop Item (Paper)
Authors/Creators:Pearce, BW and Brandner, PA
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