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Lookup NU author(s): Dr Anthony Youd, Ashley Willis, Professor Carlo Barenghi
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We study the stability of Couette flow in the case in which the outer cylinder is held fixed and the speed of the inner cylinder oscillates harmonically with time around zero mean. We find that, if the amplitude of the oscillation is large enough, it is possible that the resulting time-dependent Taylor vortex flow rotates in a direction which does not depend on the direction of the azimuthal motion which drives it. The transition to this "non-reversing" Taylor vortex flow is examined as a function of frequency of modulation and radius ratio. We also find that "non-reversing" flow is present in the wavy modes regime. © 2005 Published by The Japan Society of Fluid Mechanics and Elsevier B.V. All rights reserved.
Author(s): Youd AJ, Willis AP, Barenghi CF
Publication type: Article
Publication status: Published
Journal: Fluid Dynamics Research
Year: 2005
Volume: 36
Issue: 2
Pages: 61-73
Print publication date: 01/02/2005
ISSN (print): 0169-5983
ISSN (electronic): 1873-7005
Publisher: Institute of Physics Publishing Ltd.
URL: http://dx.doi.org/10.1016/j.fluiddyn.2004.12.001
DOI: 10.1016/j.fluiddyn.2004.12.001
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