The Effect of Strong Heterogeneity on the Onset of Convection in a Porous Medium: Periodic and Localized Variation

D Nield; A Kuznetsov; Craig Simmons

doi:10.1007/s11242-009-9390-5

The Effect of Strong Heterogeneity on the Onset of Convection in a Porous Medium: Periodic and Localized Variation

D Nield, A Kuznetsov, Craig Simmons

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The effect of strong heterogeneity on the onset of convection induced by a vertical density gradient in a saturated porous medium governed by Darcy's law is investigated. The general case, where there is heterogeneity in both the vertical and horizontal directions, and where there is heterogeneity in permeability, thermal conductivity, and applied temperature gradient, is considered. A computer package has been developed to implement an algorithm giving a criterion for instability, and this is now employed to investigate the case where the variation is of a periodic or localized nature.

Original language	English
Pages (from-to)	123-139
Number of pages	17
Journal	Transport in Porous Media
Volume	81
Issue number	1
DOIs	https://doi.org/10.1007/s11242-009-9390-5
Publication status	Published - Jan 2010

Keywords

Computer package
Heterogeneity
Localized variation
Natural convection
Periodic variation
Stability

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10.1007/s11242-009-9390-5

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