Nonlinear free convective pulsatile magnetohydrodynamic flow in a nonlinearly radiated and Ohmic heated porous channel filled with third-grade fluid properties and combinations of nanoparticles: Entropy generation

Abstract

This work explores the effect of Ohmic heating, thermal radiation, and viscous dissipation on the third-grade hybrid nanofluid’s magnetohydrodynamic pulsatile flow in a porous channel. While alumina and Gold are nanoparticles, blood was recognized as a third-grade fluid. The significance of mathematical modelling of biological fluids is evident in many medical disciplines, using magnetic fields to regulate blood flow during surgery and radiation therapy for lung cancer treatment. In Maple 2018, a system of ODE was created from the governing PDE, and then shooting approach was used to resolve the scenario. The important characteristics of emergent factors are presented through graphical representations. The findings show that the velocity falls when the non-Newtonian parameter and Hartmann number increase. As the viscous dissipation rate grows, the temperature of the nanofluid increases whereas heat transfer rate also improved. But heat transfer rate was reduced when the thermal radiation and magnetic field was increased.