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Stability of flow in a wavy channel

Published online by Cambridge University Press:  09 April 2002

A. CABAL ,
J. SZUMBARSKI  and
J. M. FLORYAN
A. CABAL
Affiliation:
Department of Mechanical and Material Engineering, The University of Western Ontario, London, Ontario, N6A 5B9, Canada Current address: Integrated Materials and Microstructures, Hardcopy and Display Technology Division, Research Labs, Eastman Kodak Company, Rochester, NY 14650-2121, USA.
J. SZUMBARSKI
Affiliation:
Department of Mechanical and Material Engineering, The University of Western Ontario, London, Ontario, N6A 5B9, Canada
J. M. FLORYAN
Affiliation:
Department of Mechanical and Material Engineering, The University of Western Ontario, London, Ontario, N6A 5B9, Canada
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Abstract

Linear stability analysis of flow in a channel bounded by wavy walls is considered. It is shown that wall waviness gives rise to an instability that manifests itself through generation of streamwise vortices. The available results suggest that the critical stability criteria based on the Reynolds number based on the amplitude of the waviness can be formulated.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 457 , 25 April 2002 , pp. 191 - 212
Copyright
© 2002 Cambridge University Press

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