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Non-reversing modulated Taylor-Couette flows

Lookup NU author(s): Dr Anthony Youd, Ashley Willis, Professor Carlo Barenghi

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Abstract

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.


Publication metadata

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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