Article,

The onset of convection in a bidisperse porous medium

, and .
International Journal of Heat and Mass Transfer, (2006)

Abstract

The classical Rayleigh-B�nard theory, for the onset of convection in a horizontal layer uniformly heated from below, has been applied to a bidisperse porous medium. The linear stability analysis leads to an expression for the critical Rayleigh number as a function of a Darcy number, two volume fractions, a permeability ratio, a thermal capacity ratio, a thermal conductivity ratio, an inter-phase heat transfer parameter and an inter-phase momentum transfer parameter.

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