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Influence of the Order of Chemical Reaction and Soret Effect on Mass Transfer of a Binary Fluid Mixture in Porous Media

B.R.Sharma , Debozani Borgohain

In the presence of chemical reaction, the Soret effect and Dufour effect on heat and mass transfer over a stretching cylinder embedded in a porous medium have been studied numerically. 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 Reynolds number, Darcy number, chemical reaction parameter, Schmidt number, Dufour number, Soret number, Prandtl number and order of the chemical reaction on temperature and concentration distributions are discussed through graphs. Also the local Nusselt number and local Sherwood number for various values of the above mentioned parameters are tabulated. It is concluded that chemical reaction parameter and order of the chemical reaction play crucial role in the solution.