The effects of chemical reaction, Hall and ion-slip currents on MHD flow with variable thermal conductivity.

Abstract

In this paper, the problem of heat and mass transfer to the magneto-hydrodynamic (MHD) flow of a micropolar, viscous, incompressible, and electrically conducting fluid with suction and blowing through a porous medium under the effects of chemical reaction, Hall, ion-slip currents, and variable thermal conductivity is studied numerically by using finite difference method. The governing fundamental equations on the assumption of a small magnetic Reynolds number are approximated by a system of nonlinear ordinary differential equation. Details of the velocities, temperature and concentration fields are presented for the various values of the parameters of the problem, e.g., magnetic, chemical reaction, Hall, ion-slip, porous, thermal conductivity and surface mass transfer parameters. The numerical results indicate that the concentration decreases as the ion-slip, Hall parameters increase. Also, it decreases as the chemical reaction, Schmidt number increase.