Natural Convection of Chemically Reacting MHD Blasius and Sakiadis Flows with Graphene and Copper Nanoparticles: Comparative Study

Abstract

The effects of magnetohydrodynamic Blasius and Sakiadis flows in porous graphene and copper nanoparticle suspension in presence of thermal radiation and chemical reaction were analyzed theoritically.Fourier’s heat flux is also incorporated to control the thermal boundary. A simulation execution by combining copper and graphene nanoparticles with base fluid. The partial governing equations system is converted to ordinary differential equations by applying similarity transformations and solved by application of R-K employing shooting technique. The non-dimensional physical parameters that govern the velocity, concentration, temperatures long with local Nusselt and Sherwood number and coefficients of fraction factor are discussed in graphs and tables. The results indicate that inclusion of copper nanoparticles increases the flow rate and mass transfer is higher in Blasius and Sakiadis boundary layers when compared to graphene particles. In Sakiadis flow the graphene profiles decreases slower than copper profile. With inclusion of graphene and copper nanoparticles the wall friction is high in Blasius flow when compared to Sakiadis flow. Increase in rate of heat flow in Sakiadis case is due to inclusion of graphene and copper nanoparticles.

Keywords: Magnetohydrodynamic, unsteadiness, chemical reaction, copper and graphene nanoparticles, Blasius and Sakiadis flows.