Thermal Radiation and Chemical Reaction Effects of Unsteady Magnetohydrodynamic Dissipative Squeezing Flow of Casson Nanofluid Over Horizontal Channel

Abstract

This work investigates the effects of chemical reaction and thermal radiation on the magnetohydrodynamic (MHD) squeezing Casson fluid flow through a porous media under the influence of heat absorption, which is motivated by the application of flow in industrial issues. The flow is generated by the compression of two plates together. The transformation of partial differential equations (PDEs) to ordinary differential equations (ODEs) is accomplished via similarity variables. The numerical analysis was carried out using the shooting method, which involved solving the competent controlling equations with dominant parameters for a thin liquid film. It is necessary to compare the numerical findings with previous research to verify the present solutions. The findings reveal that the velocity and wall shear stress increase as the distance between the two plates becomes closer. The higher values of squeezing number diminish the squeezing force on the fluid flow, which in turn reduces the thermal field. The thinner temperature boundary layer corresponds to the lower values of thermal diffusivity and it shows the higher values of temperature gradient for the increasing values of β. Due to the presence of stronger Lorentz forces the temperature and velocity fields behave like decreasing functions of Hartmann number.