Experimental study of natural convection in fluid-superposed porous layers heated locally from below

Aniruddha Bagchi; Francis A. Kulacki

doi:10.1016/j.ijheatmasstransfer.2011.09.056

Experimental study of natural convection in fluid-superposed porous layers heated locally from below

Aniruddha Bagchi, Francis A. Kulacki

Mechanical Engineering

Research output: Contribution to journal › Article

11 Scopus citations

Abstract

An experimental study of natural convection in fluid-superposed porous layers heated locally from below is reported. Measurements are made in a rectangular chamber with 3 mm DIA glass beads as the porous layer and distilled water as the saturating fluid. The effects of the heater-to-cavity length ratio and the porous layer-to-cavity height ratio on the overall heat transfer coefficients are reported. Average heat transfer coefficients over the heated surface increase with a decrease in porous layer-to-cavity height ratio, but no clear effect of heater-to-cavity length ratio is seen. Temperature profiles in the domain reveal a plume like flow with a single pair of circulating cells and evidence of convective motion inside the porous layer.

Original language	English (US)
Pages (from-to)	1149-1153
Number of pages	5
Journal	International Journal of Heat and Mass Transfer
Volume	55
Issue number	4
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2011.09.056
State	Published - Jan 31 2012

Keywords

Fluid-superposed porous layers
Natural convection
Porous media

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Bagchi, A., & Kulacki, F. A. (2012). Experimental study of natural convection in fluid-superposed porous layers heated locally from below. International Journal of Heat and Mass Transfer, 55(4), 1149-1153. https://doi.org/10.1016/j.ijheatmasstransfer.2011.09.056

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