Alexandria Engineering Journal (Jun 2018)
Non-aligned stagnation point flow of radiating Casson fluid over a stretching surface
Abstract
This paper intends to inspect the combined influence of mixed convection and thermal radiation on non-aligned Casson fluid over a stretching surface. Using scaling transformations, the governing partial differential equations are converted into a set of nonlinear ordinary differential equations which are solved by employing shooting method coupled with Runge-Kutta Fehlberg integration technique. By means of parametric investigation, influence of physical parameters such as mixed convection parameter, Radiation parameter, Biot number and Prandtl number on normal and tangential velocities, temperature profiles, skin friction coefficient and Nusselt numbers is examined. Stream line patterns are plotted in the presence and absence of mixed convection parameter which indicates that flow pattern is significantly influenced by mixed convection. Comparison with the previous published literature is presented and an excellent agreement is reported. Keywords: Non-aligned flow, Mixed convection, Thermal radiation, Casson fluid