Journal of Applied Science and Engineering

Published by Tamkang University Press


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D. Srinivasacharya This email address is being protected from spambots. You need JavaScript enabled to view it.1 and K. Kaladhar1

1Department of Mathematics, National Institute of Technology, Warangal-506 004, India


Received: August 14, 2011
Accepted: May 8, 2012
Publication Date: December 1, 2012

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An analysis is presented to investigate the Soret and Dufour effects on the mixed convection heat and mass transfer along a semi-infinite vertical plate embedded in a non-Darcy porous medium saturated with couple stress fluid. The governing non-linear partial differential equations are transformed into a system of ordinary differential equations using similarity transformations and then solved numerically. Special cases of the present investigation are compared with previously published work and found to be in good agreement. Profiles of dimensionless velocity, temperature and concentration are shown graphically for different parameters entering into the analysis. Also the effects of the pertinent parameters on the rates of heat and mass transfer in terms of the local Nusselt and Sherwood numbers are discussed.

Keywords: Mixed Convection, Non-Darcy Porous Medium, Couple Stress Fluid, Soret and Dufour Effect


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