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Dispersion effects on thermal convection in porous media

Published online by Cambridge University Press:  19 April 2006

Oddmund Kvernvold  and
Peder A. Tyvand
Oddmund Kvernvold
Affiliation:
Department of Mechanics, University of Oslo, Norway Present address: Det norske Veritas, 1322 Hovik, Norway.
Peder A. Tyvand
Affiliation:
Department of Mechanics, University of Oslo, Norway
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Abstract

The influence of hydrodynamic dispersion on thermal convection in porous media is studied theoretically. The fluid-saturated porous layer is homogeneous, isotropic and bounded by two infinite horizontal planes kept at constant temperatures. The supercritical, steady two-dimensional motion, the heat transport and the stability of the motion are investigated. The dispersion effects depend strongly on the Rayleigh number and on the ratio of grain diameter to layer depth. The present results provide new and closer approximations to experimental data of the heat transport.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 99 , Issue 4 , 29 August 1980 , pp. 673 - 686
Copyright
© 1980 Cambridge University Press

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