Poiseuille flow in a fluid overlying a porous medium

Hill, A.A.; Straughan, B.

doi:10.1017/s0022112008000852

Poiseuille flow in a fluid overlying a porous medium

Hill, A.A.; Straughan, B.

Authors

A.A. Hill

B. Straughan

Abstract

This paper numerically investigates the instability of Poiseuille flow in a fluid overlying a porous medium saturated with the same fluid. A three-layer configuration is adopted. Namely, a Newtonian fluid overlying a Brinkman porous transition layer, which in turn overlies a layer of Darcy-type porous material. It is shown that there are two modes of instability corresponding to the fluid and porous layers, respectively. The key parameters which affect the stability characteristics of the system are the depth ratio between the porous and fluid layers and the transition layer depth.

Citation

Hill, A., & Straughan, B. (2008). Poiseuille flow in a fluid overlying a porous medium. Journal of Fluid Mechanics, 603, 137-149. https://doi.org/10.1017/s0022112008000852

Journal Article Type	Article
Publication Date	May 1, 2008
Deposit Date	Sep 12, 2012
Publicly Available Date	Sep 12, 2012
Journal	Journal of Fluid Mechanics
Print ISSN	0022-1120
Electronic ISSN	1469-7645
Publisher	Cambridge University Press
Peer Reviewed	Peer Reviewed
Volume	603
Pages	137-149
DOI	https://doi.org/10.1017/s0022112008000852

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© Copyright Cambridge University Press 2008. This paper has been published by Cambridge University Press in "Journal of fluid mechanics" (603 (2008) 137-149) http://journals.cambridge.org/action/displayJournal?jid=FLM