Abstract

Heat and mass transfer characteristics of free convection flow near the lower stagnation point of an isothermal horizontal circular cylinder embedded in a porous medium subjected to chemical reaction, magnetic field and radiation is investigated numerically by taking into account the Soret and Dufour effects using Darcy-Forchheimer model. The concentration profile is drawn for various values of variable viscosity parameter, variable thermal conductivity parameter, radiation parameter, magnetic parameter, porosity parameter, Forchhiemer inertial porous parameter, Prandtl number, Schmidt number , chemical reaction parameter, Soret and Dufour numbers and the results are depicted graphically . Numerical results of rate of mass transfer for different parameters are presented in tabular form.

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