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Scale effects on cavitation about a sphere

Citation

Venning, JA and Pearce, BW and Brandner, PA, Scale effects on cavitation about a sphere, Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020, 7-10 December 2020, Brisbane, Australia, pp. 1-4. ISBN 9781742723419 (2020) [Refereed Conference Paper]


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DOI: doi:10.14264/843f2ec

Abstract

The cavity topology about a sphere is provided for a range of Reynolds numbers from 1.25 105 to 1.5 106. This decade range was achieved through three different diameter spheres and changing the freestream velocity. Various cavitation regimes were investigated including sheet cavitation, unsteady shedding of cloud cavitation, and supercavitation. High-resolution photography was used to capture the cavity state and allowed measurement of the cavity detachment angle. Two Reynolds number transitions were observed. Comparisons of cavity appearance at the same Reynolds and cavitation numbers, but different physical scales, show the influence of the Weber number.

Item Details

Item Type:Refereed Conference Paper
Keywords:cavitation, Reynolds number, multi-phase flow
Research Division:Engineering
Research Group:Fluid mechanics and thermal engineering
Research Field:Fundamental and theoretical fluid dynamics
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Venning, JA (Dr James Venning)
UTAS Author:Pearce, BW (Dr Bryce Pearce)
UTAS Author:Brandner, PA (Professor Paul Brandner)
ID Code:147903
Year Published:2020
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2021-11-23
Last Modified:2021-11-23
Downloads:0

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