TY - GEN
T1 - Characterisation of overturning flow in a precessing cylinder
AU - Albrecht, T.
AU - Meunier, P.
AU - Manasseh, R.
AU - Lopez, J. M.
AU - Blackburn, H. M.
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:85084011715
T3 - Proceedings of the 20th Australasian Fluid Mechanics Conference, AFMC 2016
BT - Proceedings of the 20th Australasian Fluid Mechanics Conference, AFMC 2006
PB - Australasian Fluid Mechanics Society
T2 - 20th Australasian Fluid Mechanics Conference, AFMC 2006
Y2 - 5 December 2016 through 8 December 2016
ER -