Non-Newtonian Momentum Transfer past an Isothermal Stretching Sheet with Applied Suction

The paper discusses the flow of an incompressible non-Newtonian fluid with heat and mass transfer due to stretching of a plane elastic surface in a saturated porous medium in the approximation of boundary layer theory. An exact analytical solution of non-linear MHD momentum equation governing the self-similar flow is given. The skin friction co-efficient decreases with increase in the visco-elastic parameter k 1 and increase in the values of both magnetic parameter and permeability parameter. The analysis of heat and mass transfer in this flow reveals that when the wall and ambient temperature held constant, temperature at a point increase with increase in k 1, k 2 and M n . I Introduction The study of magneto convection flow of non-Newtonian fluids over a continuously moving porous wall has wide applications in technological and manufacturing processes in industries. To be more specific, it may be pointed out that many metallurgical processes involve the cooling of continuous strips or filaments by drawing them through a quiescent fluid and that in the process of drawing these strips are sometimes stretched. Besides glass fibre an industries and paper production, manufacturing of polymeric sheets are some of the examples of practical applications of continuous moving flat surfaces. Above cited numerous applications of non-Newtonian fluids have led to renewed interest among