dual solutions of mhd boundary layer flow past anexponentially stretching sheet with non-uniformheat source/sink

In this study we analyzed the momentum and heat transfer characteristics of mhd boundary layer flow over an exponentially stretching surface in porous medium in the presence of radiation, non-uniform heatsource/sink, external pressure and suction/injection. dual solutions are presented for both suction andinjection cases. the heat transfer analysis is carried out for both prescribed surface temperature (pst) andprescribed heat flux (phf) cases. the governing equations of the flow are transformed into system ofnonlinear ordinary differential equations by using similarity transformation and solved numerically usingbvp4c matlab package. the impact of various non-dimensional governing parameters on velocity,temperature profiles for both pst and phf cases, friction factor and rate of heat transfer is discussed andpresented with the help of graphs and tables. results indicate that dual solutions exist only for certain rangeof suction or injection parameters. it is also observed that the exponential parameter have tendency toincrease the heat transfer rate for both pst and phf cases.