A Comparative Study on MHD flow of a Newtonian/non-Newtonian fluid past a stretching surface with nonlinear radiation and convective boundary conditions

Abstract

This article examines the effects of nonlinear thermal radiation and viscous dissipation on Newtonian and non-Newtonian fluid flows over a stretching surface. The convective boundary conditions are used in this study. A uniform magnetic field is applied in the flow field. Applying suitable similarity transformations in the governing partial differential equations lead to a nonlinear differential system, which is solved by using Runge-Kutta-Fehlberg integration scheme. Effects of various pertinent parameters on velocity and temperature profiles are sketched and discussed in detail. The numerical values for friction factor and heat transfer coefficient were also obtained and presented in tabular forms. Results depict that Newtonian fluid attains the highest velocity when compared with non-Newtonian fluid. Also Eckert number and temperature ratio parameters have tendency to enhance the fluid temperature.