The effect of Soret and Dufour parameters on free convection from a horizontal flat plate in a Darcian fluid saturated porous medium is analyzed using the similarity solution technique. With constant wall temperature and concentration, the similarity solution is possible even when Soret and Dufour effects are considered in the medium. The transformed coupled systems of ordinary differential equations involve parameters such as the buoyancy ratio parameter N and diffusivity ratio Le in addition to the Soret Sr and Dufour Df parameters. The effect of all these parameters on the convective transport has been analyzed, and the variation of heat and mass transfer coefficients with Dufour and Soret parameters is presented through computer generated graphs. Copyright © 2008 by ASME.

Anantha Lakshmi Narayana P

Department of Mathematics

P.V.S.N. Murthy

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Journal	Journal of Heat Transfer
ISSN	00221481