Cattaneo – Christov heat and mass flux model for Electromagnetohydrodynamic (EMHD) non-Newtonian flow of Jeffrey nanofluid with nonlinear thermal radiation and stratified boundary conditions

Abstract

Our intention in this article is to analyze the enhancement of heat and mass transfer of an electromagnetohydrodynamic incompressible flow through a stretching sheet. An electrically conducting non-Newtonian Jeffrey nanofluid is considered. The Cattaneo–Christov model of heat and mass flux is engaged to scrutinize the thermal relaxation properties. The basic Buongiorno nanoparticle model is taken under Brownian motion, thermophoresis, and nonlinear thermal radiation effects with stratified boundary conditions. The Joule current is incorporated in the energy equation. The total entropy generation is also discussed by implementing the second law of thermodynamics. The nonlinear systems are computationally solved by the optimal homotopy analysis method. The influences of embedded factors on skin friction, Nusselt number, and Sherwood number are accessible through tables. It is been witnessed that for advancing values of thermal relaxation parameter the temperature profiles decrease, but increases for thermophoresis and thermal radiation parameter. Entropy rates are enhanced for radiation parameter and Reynold’s number. This is also observed that for advancing values of Deborah number from 0.4 to 0.8, the skin friction coefficient increases by 40%, and the Nusselt number is increased by 23% for advancing values of thermal radiation parameter ranging from 0.3 to 0.7.