Stagnation-point flow of a viscous fluid towards a stretching surface with variable thickness and thermal ‎radiation‎

‎In the present analysis‎, ‎we study the boundary layer flow of an incompressible viscous fluid near the two-dimensional stagnation-point flow over a stretching surface‎. ‎The effects of variable thickness and radiation are also taken into account and assumed that the sheet is non-flat‎. ‎Using suitable transformations‎, ‎the governing partial differential equations are first converted to ordinary one and then solved numerically by fourth and fifth order Runge-Kutta-Fehlberg method with shooting technique‎. ‎The influence of the various interesting parameters on the flow and heat transfer is analyzed and discussed through graphs in detail‎. ‎Comparison of the present results with known numerical results is shown and a good agreement is observed‎. ‎It is found that boundary layer is formed when \lambda > ۱ ‎.  ‎On the other hand‎,  ‎an inverted boundary layer is formed when \lambda < ۱ ‎.‎

کلیدواژه ها:

Stagnation-point flow ، Variable thickness ، Stretching sheet ، Thermal radiation ، Numerical ‎solution