Coupled heat and mass transfer in Darcy-Forchheimer mixed convection from a vertical flat plate embedded in a fluid-saturated porous medium under the effects of radiation and viscous dissipation

This paper investigates the influence of viscous dissipation and radiation on the problem of Darcy-Frochheimer mixed convection from a vertical flat plate embedded in a fluid-saturated porous medium with thermal and mass diffusion. The fluid considered is a gray medium, and the Rosseland approximation is used to describe the radiative heat flux in the energy equation. A similarity solution for the transformed governing equations is obtained, and those equations are been solved by employing a numerical shooting technique with a fourth-order Runge-Kutta integration scheme. Numerical computations are carried out for the non-dimensional physical parameters. The results are analyzed for the effect of different physical parameters, such as radiation, natural and forced convection, the Ecret number, the buoyancy ratio, and the inertia parameter, on the flow, the heat, and the mass-transfer characteristics.