Numerical simulation and stability analysis on MHD free convective heat and mass transfer unsteady flow through a porous medium in a rotating system with induced magnetic field

摘要

A numerical study of Soret and Dufour effects on MHD free convective heat and mass transfer unsteady high speed flow of viscous fluid through a porous medium with induced magnetic field is investigated in a rotating system. In this observation, heat and mass fluxes from the medium are considered to be constant for cooling problem with lighter and heavier particles. Numerical values of velocity, induced magnetic field, temperature and concentration are computed by the conditionally stable explicit finite difference method with stability and convergence analysis. The shear stress, current density, Nusselt number and Sherwood number are also calculated here. Effects of associated parameters on the above mentioned quantities are shown graphically and physical aspects of the problem are discussed in detail. Finally, both the qualitative and quantitative comparisons of present results with previous work are presented in tabular form.