Effect of temperature-dependent viscosity on hydromagnetic unallied flow

Abstract

The present article focuses on radiative hydromagnetic unallied stagnation point flow past a horizontal extending surface under varying viscosity concerning temperature. To understand the physical behaviour of the physical model, we converted the scheme of nonlinear partial differential equations to ordinary differential equations using suitable similarities. Matlab bvp5c procedure is adopted to obtain the computational outcomes. Also, we graphed the flow and temperature fields with and without the influence of magnetic field for various controlling non-dimensional parameters such as thermal radiation, variable viscosity, Prandtl number, velocity and temperature ratio parameters, etc. Moreover, Nusselt number and wall friction are evaluated and presented in the table for both criteria. It is noticed that the heat transfer rate is high in the presence of a magnetic field when compared to the absence of a magnetic field. Thermal radiation, viscosity variation, and temperature ratio parameters effectively stabilise the axial flow velocity.