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2015 CAV - Brandner Henderson de Graaf Pearce.pdf (4.62 MB)

Bubble breakup in a turbulent shear layer

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conference contribution
posted on 2023-05-23, 10:50 authored by Paul BrandnerPaul Brandner, Alan HendersonAlan Henderson, De Graaf, KL, Bryce PearceBryce Pearce
The breakup of a millimetre size buoyantly rising bubble encountering a horizontal plane turbulent jet is experimentally investigated using high-speed shadowgraphy and acoustic techniques. The bubble diameter to jet height ratio is 0.75 and the jet height based Reynolds number is 4000. The high-speed imaging was recorded at 7 kHz simultaneous with hydrophone output at 100 kHz. Bubble breakup events were seen to produce simple binary divisions into products of similar size as well as three products where at least one was much smaller than the other products. Coalescence of products was also observed. In almost all cases time-frequency analysis of the acoustic emissions enabled the products to be identified and sized.

History

Publication title

Journal of Physics Conference Series: 9th International Symposium on Cavitation

Volume

656

Pagination

1-4

ISSN

1742-6588

Department/School

Australian Maritime College

Publisher

Institute of Physics Publishing Ltd

Place of publication

United Kingdom

Event title

9th International Symposium on Cavitation

Event Venue

Lausanne, Switzerland

Date of Event (Start Date)

2015-12-06

Date of Event (End Date)

2015-12-10

Rights statement

Creative Commons Attribution 3.0 licence

Repository Status

  • Open

Socio-economic Objectives

Nautical equipment

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