group theoretical analysis of non-newtonian fluid flow,heat and mass transfer over a stretching surface in the presence of thermal radiation

The present article examines the flow, heat and mass transfer of a non-newtonian fluid known as casson fluid over a stretching surface in the presence of thermal radiations effects. lie group analysis is used to reduce the governing partial differential equations into non-linear ordinary differential equations. these equations are then solved by an analytical technique known as homotopy analysis method (ham). a comprehensive study of the problem is being made for various parameters involving in the equations through tables and graphs.