Numerical Solution for Ohmic Soret-Dufour Heat and Mass Mixed Convection of Viscoelastic Fluid over a Stretching Sheet with Multimedia Physical Features

Abstract

In this study, an analysis was performed for numerical Soret-Dufour heat and mass transfer of a steady laminar boundary-layer flow with Ohmic dissipation, electromagnetic hydrodynamic (EMHD) porosity, and buoyancy multimedia physical features about extrusion processing for a stretching sheet. There are many applications in the manufacturing of foods and paper and other similar activities, such as extrusion processing, cooling systems or heat exchangers, which might greatly reduce the required pumping power. A modified numerical solution of the flow velocity distributions, temperature profiles, and the wall unknown values of θ′(0) and ϕ′(0) for calculating the heat and mass transfer of the similar boundary-layer flow are carried out as functions of the viscoelastic parameter E, the Prandtl number Pr, and the buoyancy parameters Gr and Gc. Values of E, Pr, E1, Gr, and Gc parameters are important factors in this study. Although a greater heat transfer effect will be produced with a larger value of these parameters, the magnetic parameter M, porosity parameter DL, Dufour number Df, Eckert number Ec, and Soret number Sr may reduce the heat transfer effect. In this study, for mass transfer, the value of Schmidt number Sc is an important factor. Although the larger value of Sc will produce a greater mass transfer efficiency, the Soret number Sr has a negative effect on the mass transfer process.