Entropy generation on Casson hybrid nanofluid over a curved stretching sheet with convective boundary condition: Semi-analytical and numerical simulations

Abstract

The present study reports a computational analysis of entropy generation on the MHD flow behavior of two-dimensional Casson hybrid nanofluid over a porous curved stretching sheet in the appearance of thermal radiation. To examine the rheology of the blood we have incorporated Casson fluid model in which comparison is done for both Newtonian and non-Newtonian models. In this investigation, we used the blood as based and Tantalum ( Ta) and Cobalt ( Co) are nanoparticles due to an extensive range of biomedical applications such as an agent to prevent the heat transfer of blood and wounded tissue, treatments of anemia, and treatment of cancer therapeutics. The governing non-linear coupled partial differential equations are altered into non-linear coupled ordinary differential equations by using the similarity variables. The Homotopy Perturbation Method is used to solve the newly renovated equations semi-analytically. The semi-analytical outcomes are validated with numerical outcomes obtained through the shooting method, and they are also compared to available literature as a limiting case. Graphical projections are supplied with the influence of active parameters for velocity, temperature, Bejan number, entropy production, skin friction, and Nusselt number. The velocity profile increases for higher values of curvature parameter, and mixed convection parameter. The temperature profile increases, when increases the thermal radiation and magnetic parameters. Higher values of the nanoparticle’s volume fraction enhance the rate of heat transfer. Compare to the Newtonian fluid model non-Newtonian provide higher heat transfer.