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Scale effects on cavitation about a sphere

conference contribution
posted on 2023-05-23, 15:08 authored by James VenningJames Venning, Bryce PearceBryce Pearce, Paul BrandnerPaul Brandner
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.

History

Publication title

Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020

Editors

H Chanson and R Brown

Pagination

1-4

ISBN

9781742723419

Department/School

Australian Maritime College

Publisher

The University of Queensland

Place of publication

Brisbane

Event title

22nd Australasian Fluid Mechanics Conference AFMC2020

Event Venue

Brisbane, Australia

Date of Event (Start Date)

2020-12-07

Date of Event (End Date)

2020-12-10

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences