File(s) under permanent embargo
Background nuclei measurements and implications for cavitation inception in hydrodynamic test facilities
journal contributionposted on 2023-05-19, 17:10 authored by James VenningJames Venning, Khoo, MT, Bryce PearceBryce Pearce, Paul BrandnerPaul Brandner
Water susceptibility and background nuclei content in a water tunnel are investigated using a cavitation susceptibility meter. The measured cumulative histogram of nuclei concentration against critical pressure shows a power law dependence over a large range of concentrations and pressures. These results show that the water strength is not characterised by a single tension but is susceptible to ‘all’ tensions depending on the relevant timescale. This background nuclei population is invariant to tunnel conditions showing that it is stabilised against dissolution. Consideration of a practical cavitating flow about a sphere shows that although background nuclei may be activated, their numbers are so few compared with other sources that they are insignificant for this case.
Publication titleExperiments in Fluids
Department/SchoolAustralian Maritime College
Place of publication175 Fifth Ave, New York, USA, Ny, 10010
Rights statementCopyright 2018 Springer-Verlag GmbH Germany, part of Springer Nature