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Nucleation effects on tip-gap cavitation

Russell, PS ORCID: 0000-0001-5320-7222, Barbaca, L ORCID: 0000-0002-8421-1109, Venning, JA ORCID: 0000-0002-4097-2168, Pearce, BW ORCID: 0000-0003-2189-5598 and Brandner, PA ORCID: 0000-0002-6721-878X 2020 , 'Nucleation effects on tip-gap cavitation', paper presented at the 22nd Australasian Fluid Mechanics Conference (AFMC2020), 6-10 December 2020, Brisbane, Australia.

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Abstract

Cavitation in tip leakage flows have been investigated in a water tunnel for different concentrations of free-stream cavitation nuclei. High-resolution still photography exhibits similar cavitation topology overall. However, hydro-acoustic measurements reveal stark differences in the desinent extinction of cavitation when different levels of active nuclei are present. Results quantify the anticipated challenges in designing enclosed propulsors and turbo-machinery that operate in flows with varying susceptibility to cavitation.

Item Type: Conference or Workshop Item (Paper)
Authors/Creators:Russell, PS and Barbaca, L and Venning, JA and Pearce, BW and Brandner, PA
Keywords: cavitation, multi-phase flows, nuclei, tip-gap flow
Journal or Publication Title: Proceedings of the 22nd Australasian Fluid Mechanics Conference (AFMC2020)
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