Thermal Radiation and Slip Effects on MHD Flow and Heat Transfer of Casson Nanofluid Over an Exponentially Stretching Sheet

摘要

In the present study, the effects of velocity slip and thermal slip on MHD boundary layer flow of Casson Nanofluid over an exponentially stretching sheet in presence of thermal radiation and suction/blowing is investigated numerically. By means of proper similarity transformations, the governing partial differential equations are transformed to set of non-linear ordinary differential equations which are solved by Runge-Kutta fourth order method with shooting technique. The similarity solutions for velocity, temperature and nanoparticle volume fraction profiles for different values of the physical parameters are discussed and presented graphically. As well as the Skin-friction coefficient, local Nusselt and local Sherwood numbers are exhibited and analyzed. It is found that the thermal radiation enhances the effective thermal diffusivity and the temperature rises. Velocity and temperature profiles are found to decrease with an increase of velocity slip and thermal slip parameters respectively. Finally, the velocity decreases with the increasing values of Casson parameter.