Characterisation of overturning flow in a precessing cylinder

T. Albrecht, P. Meunier, R. Manasseh, J.M. Lopez, H.M. Blackburn

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Experiments of the flow in precessing containers have repeatedly shown a rapid breakdown to turbulence, which remains unexplained to date. We present direct numerical simulations closely modelled after the experiments of Manasseh (JFM 243, 1992). Despite the four times lower Reynolds number of 4780, we still observe a transition with the same characteristics as in the experiment. Analysis of the flow state preceding the breakdown shows a relatively clean and simple overturning flow, and a strong azimuthal mean flow. Contrary to observations by Manasseh, we find no flow reversals before or during the breakdown.

Original languageEnglish
Title of host publication20th Australasian Fluid Mechanics Conference
Place of PublicationPerth WA Australia
PublisherAustralasian Fluid Mechanics Society
Number of pages4
ISBN (Electronic)9781740523776
ISBN (Print)9781740523776
Publication statusPublished - 1 Dec 2016
EventAustralasian Fluid Mechanics Conference 2016 - The University of Western Australia, Perth, Australia
Duration: 5 Dec 20168 Dec 2016
Conference number: 20th


ConferenceAustralasian Fluid Mechanics Conference 2016
Abbreviated titleAFMC 2016

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