Thermal radiation effect on Non-Newtonian Casson fluid through a porous material over a magnetic field with buoyancy

Authors: Seun Oyinkansola Mate, Adebowale Martins Obalalu, Olusegun Adebayo Ajala, Toyibat Bamidele Bakare, Amos Wale Ogunsola, Akintayo Oladimeji Akindele

Volume 10, Issue 1, Paper No. 100103

Abstract 

  The magnetohydrodynamic (MHD) chemically reactive of Casson non-Newtonian nanofluid flow on a two-dimensional incompressible steady from stretched sheet in a porous quiescent medium with buoyancy effect is investigated numerically. Additional effects included in the originality of the model are the applied magnetic field and solar radiation effect. The Chebyshev collocation method (CCM) was used to solve the ordinary differential equations (ODEs) with MATHEMATICA 11.3 software. The present tables and graphs show the performance of fluid physical quantities, momentum flow, energy distribution, nanoparticle concentration, and velocity for various values of applicable dimensionless numbers. The numerical outcomes demonstrate the effect of different physical parameters of the fluid, and it was observed that the velocity profile increased as the thermal and mass Grashof number increased due to an increase in buoyant force caused by heat transferred from the vertical plate to the fluid but decreased as the Casson parameter increased due to a decrease in its yield stress, porosity, and magnetic parameter. Also Analyses reveal that the thermal profile reduce with an increase in variable thermal conductivity parameter. This study will be of considerable economic value to marine engineers, mechanical engineers, physicists, chemical engineers, and others since its application will help them improve their operations.

Keywords: Casson fluid; Buoyancy effect; Magnetic; Variable viscosity; Chebyshev collocation method.

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