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Onset of convection in a layered porous medium heated from below

Published online by Cambridge University Press:  19 April 2006

R. Mckibbin  and
M. J. O'Sullivan
R. Mckibbin
Affiliation:
Department of Theoretical and Applied Mechanics, University of Auckland, New Zealand
M. J. O'Sullivan
Affiliation:
Department of Theoretical and Applied Mechanics, University of Auckland, New Zealand
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Abstract

The formalism required to determine the criterion for the onset of convection in a multi-layered porous medium heated from below is developed using a straightforward linear stability analysis. Detailed results for two- and three-layer configurations are presented. These results show that large permeability differences between the layers are required to force the system into an onset mode different from a homogeneous system.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 96 , Issue 2 , 29 January 1980 , pp. 375 - 393
Copyright
© 1980 Cambridge University Press

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