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International Heat Transfer Conference 8

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

COMBINED HEAT AND MASS TRANSFER NATURAL CONVECTION BETWEEN VERTICAL PARALLEL PLATES WITH UNIFORM FLUX BOUNDARY CONDITIONS

Douglas J. Nelson
Mechanical and Aerospace Engineering Department, Arizona State University Tempe, Arizona 85287 U.S.A.

Byard D. Wood
Mechanical and Aerospace Engineering Department, Arizona State University Tempe, Arizona 85287 U.S.A.

DOI: 10.1615/IHTC8.3190
pages 1587-1592

Abstract

A numerical analysis of developing laminar flow between vertical parallel plates is presented for combined heat and mass transfer natural convection with symmetric and asymmetric uniform heat and mass flux boundary conditions. For long channels (low Rayleigh numbers) the numerical solutions approach the fully developed flow analytical solution. At higher Rayleigh numbers, the present results are compared with the available experimental data and numerical solutions for natural convection heat transfer in channels, and with external combined heat and mass transfer free convection similarity solutions for a single plate. At intermediate Rayleigh numbers, the parallel plate heat and mass transfer is higher than that for a single plate, similar to previous heat transfer only results.

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