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Natural convection flow of a viscous incompressible fluid in a rectangular porous cavity heated from below with cold sidewalls


Reference:

Hossain, M. A. and Rees, D. A. S., 2003. Natural convection flow of a viscous incompressible fluid in a rectangular porous cavity heated from below with cold sidewalls. Heat and Mass Transfer, 39 (8-9), pp. 657-663.

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Abstract

We consider the flow, which is induced by differential heating on the boundaries of a porous cavity heated from below. In particular we allow the sidewalls to have the same cold temperature as the upper surface, and thus the problem is a variant of the Darcy-Benard convection problem, but one where there is flow at all non-zero Grashof numbers. Attention is focused on how the flow and heat transfer is affected by variations in the cavity aspect ratio, the Grashof number and the Darcy number. The flow becomes weaker as the Darcy number decreases from the pure fluid limit towards the Darcy-flow limit. In addition the number of cells which form in the cavity varies primarily with the aspect ratio and is always even due to the symmetry imposed by the cold sidewalls.

Details

Item Type Articles
CreatorsHossain, M. A.and Rees, D. A. S.
DOI10.1007/s00231-003-0455-7
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
RefereedYes
StatusPublished
ID Code2490
Additional InformationID number: ISI:000185827800004

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