NATURAL CONVECTION IN HORIZONTAL POROUS LAYERS WITH LOCALIZED HEATING FROM BELOW.

V. Prasad, F. A. Kulacki

Research output: Contribution to journalConference article

8 Scopus citations

Abstract

A numerical study is conducted for steady-state free convective heat transfer in horizontal porous layers with localized heating from below. The geometry considered is a two-dimensional rectangular cavity whose central portion of the bottom surface is isothermally heated and the upper surface is cooled at a constant temperature; all other surfaces are adiabatic. The effect of cavity width on temperature and flow fields, and heat transfer rates are studied for various sizes of heat source and Rayleigh number up to 1000. For a fixed aspect ratio, the effect of an increasing Rayleigh number is to produce a plume-like flow above the heated region and an adverse stratification in the core. (Edited author abstract. )

Original languageEnglish (US)
Pages (from-to)199-207
Number of pages9
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume46
StatePublished - Jan 1 1985

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