Entropy generation in radiative MHD nanofluid flow past an inclined stretched surface with multiple slips in the presence of Arrhenius activation energy

Abstract

In this article, a theoretical analysis on entropy generation in MHD nanofluid flow past an inclined stretched surface with multiple slips, binary chemical reaction, nonlinear thermal radiation and Arrhenius activation energy is carried out. In addition, the free-stream is moving with a uniform velocity and the presence of internal heat generation, thermal and solutal buoyancy forces are also taken into consideration. For estimating the radiative heat flux, Rosseland approximation is used. The prevailing governing equations are reformed and expressed in non-dimensional highly nonlinear ODEs with employing some suitable transformations (similarity). A numerical technique named as a shooting technique based on the Runge-Kutta Cash-Karp method is implemented to tackle this dimensionless set of equations. Graphical illustrations are made to understand the behaviors of velocity, temperature, concentration, Bejan number and entropy generation with respect to different controlling parameters. Moreover, the computed values of the quantities of engineering interest (local skin friction, local Nusselt and local Sherwood numbers) are presented with the help of tables and discussed. The numerical results obtained are also validated, under certain minimal conditions, with the results present in the paper, and excellent conformity is observed between the results.