Three dimensional MHD flow of couple stress Casson fluid past an unsteady stretching surface with chemical reaction

The analysis of three dimensional MHD flow of couple stress Casson fluid past an unsteady stretching surface with the effect of chemical reaction and convective boundary condition has been considered. The governing partial nonlinear differential equations are treated with similarity variables reduced into them ordinary deferential equations. Runge Kutta Fehlberg fourth fifth order method is to employed to the resultant equation for numerical solution. The results are then discussed graphically in the form of velocity, temperature and concentration profiles for several physical parameters of interest. From the plotted results it is observed that the larger values of Casson parameter decrease velocity components. Whereas, solutal boundary layer thickness decreases for larger values of chemical reaction parameter and Schmidt number. The present results are compared with the existing limiting solutions, showing good agreement with each other. (C) 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.