Natural Convection in a Porous Medium: Effects of Confinement, Variable Permeability, and Thermal Boundary Conditions
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Two-dimensional numerical calculations are reported for natural convection of a fluid in a porous, horizontal layer heated from below. Effects of the following parameters are examined: rigid (impermeable) and constant-pressure (permeable) upper boundaries; isothermal and uniform heat flux at the lower boundary; and permeabilities which are constant, or which vary with depth to simulate compaction of a porous medium or property variations of real fluids within the medium. Steady-state results are presented for the heat flux distribution on the upper surface, as well as for flow and temperature fields in the interior.
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2004 ◽
Vol 152
(2)
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pp. 323-335
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Keyword(s):
2013 ◽
Vol 34
(6)
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pp. 669-686
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Keyword(s):
2020 ◽
pp. 12-27
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1976 ◽
Vol 42
(360)
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pp. 2492-2500
2007 ◽
Vol 51
(11)
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pp. 1065-1086
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