Effects of geological inhomogeneity on high Rayleigh number steady state heat and mass transfer in fluid-saturated porous media heated from below

Zhao, CB, Muhlhaus, HB and Hobbs, BE (1998) Effects of geological inhomogeneity on high Rayleigh number steady state heat and mass transfer in fluid-saturated porous media heated from below. Numerical Heat Transfer Part A-applications, 33 4: 415-431.


Author Zhao, CB
Muhlhaus, HB
Hobbs, BE
Title Effects of geological inhomogeneity on high Rayleigh number steady state heat and mass transfer in fluid-saturated porous media heated from below
Journal name Numerical Heat Transfer Part A-applications   Check publisher's open access policy
Publication date 1998
Sub-type Article
DOI 10.1080/10407789808913947
Volume number 33
Issue number 4
ISSN 1040-7782
Start page 415
End page 431
Total pages 17
Language eng
Abstract A parametric study is carried out to investigate how geological inhomogeneity affects the pore-fluid convective flow field, the temperature distribution, and the mass concentration distribution in a fluid-saturated porous medium. The related numerical results have demonstrated that (1) the effects of both medium permeability inhomogeneity and medium thermal conductivity inhomogeneity are significant on the pore-fluid convective flow and the species concentration distribution in the porous medium; (2) the effect of medium thermal conductivity inhomogeneity is dramatic on the temperature distribution in the porous medium, but the effect of medium permeability inhomogeneity on the temperature distribution may be considerable, depending on the Rayleigh number involved in the analysis; (3) if the coupling effect between pore-fluid flow and mass transport is weak, the effect of the Lewis number is negligible on the pore-fluid convective flow and temperature distribution, hut it is significant on the species concentration distribution in the medium.
Keyword Thermodynamics
Mechanics
Double-diffusive Convection
Horizontal Line Source
Natural-convection
Layer
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article
Collection: Earth Systems Science Computational Centre Publications
 
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Created: Mon, 13 Aug 2007, 10:24:13 EST