MHD Mixed Convection from a Horizontal Plate Embedded in a Porousmedium with a Convective Boundary Condition

Abstract

The heat and mass transfer from a horizontal plate embedded in a porous medium experiencing a first-order chemical reaction and exposed to a transverse magnetic field was studied using an analytical approach. A convective boundary condition is used instead of the commonly used conditions of constant surface temperature or constant heat flux, making this study unique and the results more realistic and practically useful. The momentum, energy, and concentration equations are solved analytically and thoroughly tested as coupled second-order ordinary differential equations. Graphic representations of the effects of Biot number, thermal Grashof number, permeability parameter, Hartmann number, Eckert number, Sherwood number, and Schmidt number on velocity, temperature, and concentration profiles are provided. The local temperature is proportional to the temperature of the plate surface.