Poiseuille flow in a fluid overlying a highly porous material

Hill, A. A. and Straughan, B. (2009) Poiseuille flow in a fluid overlying a highly porous material. Advances in Water Resources, 32 (11). pp. 1609-1614. ISSN 0309-1708

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Publisher's URL: http://dx.doi.org/10.1016/j.advwatres.2009.08.007

Abstract

This paper investigates the instability of Poiseuille flow in a fluid overlying a highly porous material. A two layer approach is adopted, where the Darcy–Brinkman equation is employed to describe the fluid flow in the porous medium, with a tangential stress jump boundary condition at the porous/fluid interface. The basic velocity profiles are continuous due to the interfacial boundary conditions. It is shown that for certain parameter ranges the neutral curves are no longer bimodal, such that the two modes of instability corresponding to the fluid and porous layers, respectively, are not distinct.

Item Type:Article
Uncontrolled Keywords:superposed porous–fluid convection, Darcy–Brinkman
Faculty/Department:Faculty of Health and Applied Sciences > Department of Biological, Biomedical and Analytical Sciences
ID Code:17531
Deposited By: Dr A. Hill
Deposited On:24 Oct 2012 15:02
Last Modified:29 May 2014 14:13

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