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Flow in a small annulus between concentric cylinders

Published online by Cambridge University Press:  20 April 2006

M. Lücke ,
M. Mihelcic ,
K. Wingerath  and
G. Pfister
M. Lücke
Affiliation:
Institut für Festkörperforschung der Kernforschungsanlage Jülich, D-5170 Jülich, West Germany Permanent address: Fachrichtung Theoretische Physik, Universität des Saarlandes, D-6600 Saarbrücken, West Germany.
M. Mihelcic
Affiliation:
Institut für Festkörperforschung der Kernforschungsanlage Jülich, D-5170 Jülich, West Germany
K. Wingerath
Affiliation:
Institut für Festkörperforschung der Kernforschungsanlage Jülich, D-5170 Jülich, West Germany
G. Pfister
Affiliation:
Institut für Angewandte Physik der Universität Kiel D-2300 Kiel 1. West Germany
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Abstract

Rotationally symmetric vortex flows between concentric cylinders with the inner one rotating and the outer one at rest have been investigated by numerical simulation and by laser-Doppler velocimetry for an annulus of aspect ratio Γ = 1.05 with a radius ratio η = 0.5066. Stationary states and relaxation towards them were explored close to the transition from the primary flow, which is mirror symmetric with respect to the midplane of the annulus, to a flow which gradually loses the symmetry. Detailed comparison of numerically simulated and measured velocity fields is made.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 140 , March 1984 , pp. 343 - 353
Copyright
© 1984 Cambridge University Press

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