Abstract

In the current study, the effects of Soret and Dufour numbers on the mixed MHD flow over a vertical plate embedded in a porous medium in the presence of first-order chemical reactions are studied. The partial differential equations of continuity, momentum, energy and concentration are converted to the ordinary differential equations by the similarity method. Moreover, a convective boundary condition, which is more appropriate for the industrial application of the MHD flows, is utilized to solve the governing equations. The equations are solved by the shooting iterative technique with a sixth-order Runge–Kutta integration algorithm. The velocity, temperature and concentration profiles are illustrated for different physical parameters. The results show that the values of the velocity, temperature and mass concentration of the fluid increase by increasing the Biot, Soret and Dufour numbers. Furthermore, the effects of magnetic parameter, Biot number, Soret and Dufour numbers on the skin-friction coefficient, Nusselt number and Sherwood number are depicted.

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