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Soret and Dufour Effects on Heat and Mass Transfer of Boundary Layer Flow over Porous Wedge with Thermal Radiation: Bivariate Spectral Relaxation Method

Keywords: Chemical Reaction, Heat Radiation, Porous Wedge, Soret and Dufour, Bivariate Spectral Relaxation Method (BSRM)

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Abstract:

Boundary layer flow has great importance in engineering applications such as oil bed recovery, filtration, thermal insulations, heat exchangers, geothermal analysis and so on. This paper investigated the effects of heat radiation, soret and dufour in the presence of suction or injection on a boundary layer flow over a porous wedge. The governing equations with the boundary conditions are non-dimensionalized by introducing some non-dimensional variables. The flow model is described in terms of a highly coupled and nonlinear system of partial differential equations as the method of solution seeks to decouple the original system to form a sequence of equations corresponding to the momentum, energy and concentration equations that is solved in a computationally efficient manner. The resulting equations are solved using a numerical technique called Bivariate Spectral Relaxation Method (BSRM). Numerical calculations are carried out for different values of dimensionless parameters and the analysis of the physical parameters of engineering applications are investigated. Effects of these major parameters on transport behaviors are investigated and typical results are illustrated to reveal the effect of pertinent parameter on the velocity, temperature, concentration profiles of the flow. The effects on the local skin friction, local nusselt and Sherwood number are also presented in the tables

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