Impact of Electrical and Moving Magnetic Fields on the Heat Transfer Flow of Immiscible Pure Fluids and Nanofluids Through Porous Media with Varied Porosity

This paper discusses fully developed electromagnetohydrodynamic (EMHD) flow and heat transfer of an immiscible pure fluid and a nanofluid in a horizontal channel.The channel is saturated with a porous medium, and its top and bottom halves have different porosities.The pure fluid flows through the top half, while the nanofluid flows through the bottom half.Impermeable isothermal horizontal plates act as the channel walls.The channel is influenced by an external moving homogeneous magnetic field.Analytical distributions of fluid flow velocity and fluid temperature in the channel as a function of the physical parameters are introduced specifically to address this problem.The distributions are also presented as graphs for multiple values of the introduced parameters.The Nusselt number and skin friction values on the channel walls are also determined and presented in a table.The analysis of the obtained results is followed by the resulting conclusions about the impact of introduced parameters on the fluid flow and heat transfer in the observed channel.