Soret and Dufour Effects on MHD Micropolar Fluid Flow with Heat and Mass Transfer Past a Horizontal Plate in Porous Medium

Abstract

AbstractIn the present study, efforts have been made to investigate numerically the impact of Soret effect along with its reverse effect, i.e. Dufour effect on steady, MHD micropolar fluid flow over a horizontal plate which is semi-infinite in extent with the transmission of heat along with mass in a medium taken to be porous. The effect of chemical reaction and heat source is further considered. Appropriate dimensionless transformations are used to reduce the equations governing the problem to non-dimensional form. The numerical solution of the problem is obtained in graphs for velocity, angular velocity, temperature and concentration distributions for important parameters affecting the problem using bvp4c, which is inbuilt solver in MATLAB. Coefficient of skin friction, surface couple stress, Nusselt number as well as Sherwood number are determined. The validity of our solution is established when the current outcomes are compared with some other published work. Numerical findings show that Soret and Dufour number boost the heat transmission rate but slow the mass transfer rate.KeywordsDufour effectMicropolar fluidPorous mediumSoret effectbvp4c