MAGNETOHYDRODYNAMIC (MHD) CONVECTIVE FLOW IN A POROUS MEDIUM WITH SUCTION/ INJECTION AND DUFOUR EFFECTS

Abstract

Here MHD convective flow with Dufour and suction/injection effects through a porous medium is explored. The equations governing the flow are: continuity, momentum, energy and mass equations that are modeled using partial differential equations (PDEs) in non-dimensionless form. The PDEs explains the unsteady flow of an incompressible electrically conducting fluid. Furthermore, the PDEs were transformed to dimensionless form employing suitable variables. Finite Difference Method (FDM) was used to derived approximations for the velocity, temperature and concentration. Numerical computations were performed to investigate and discuss the influence of physical parameters embedded in the fluid flow. It was noticed that the concentration, temperature and velocity of the fluid rises with increase in injection parameter and an opposite trend was found when suction parameter became significant. It is also seen that the momentum and thermal boundary layers becomes higher as the Dufour number increases.