Triple diffusion along a horizontal plate in a porous medium with convective boundary condition

The effects of triple diffusion on a horizontal plate immersed in a porous medium are investigated subject to a convective boundary condition. A Darcy model is used to analyze two different scenarios where salts with different compositions are dissolved in a fluid-saturated porous medium. The governing partial differential equations are reduced to ordinary (similarity) differential equations that are solved numerically using an implicit finite difference method with a quasi-linearization technique. Results are compared with the available data and are found to be in excellent agreement. Results of the dimensionless velocity, temperature, salts concentrations, reduced Nusselt and Sherwood numbers are presented for both buoyancy aiding and opposing flows.