Influence of chemical reaction, Soret and Dufour effects on heat and mass transfer of a binary fluid mixture in porous medium over a rotating disk

Abstract

Soret and Dufour effects on heat and mass transfer in steady flow over a rotating disk in porous medium are investigated. A set of coupled ordinary differential equations are obtained from the governing nonlinear partial differential equations which are then solved numerically by using MATLAB's built in solver bvp4c. The effects of material parameters like the porosity parameter, chemical reaction parameter, Dufour number, Soret number, Schmidt number and Prandtl number on temperature and concentration distributions are discussed through graphs. It is concluded that the porosity of the medium and the chemical reaction parameter play crucial role on the heat and mass transfer.