An MHD couple stress fluid due to a perforated sheet undergoing linear stretching with heat transfer

We investigate an MHD couple stress liquid due to a perforated sheet undergoing linear stretching withradiation. The liquid is initially at rest with its activity is restricted by pulling the two sheet ends withparallel and identical forces. The consequential movement of the or else quiescent fluid is consequently generated exclusively by the stirring plate that develops a linearly varied speed with the distance from the slit. In addition to fluid flow, heat transfer with two cases of different boundary conditions from the sheet is considered, the first with prescribed surface temperature and, the second with prescribed heat flux. The arising set of non-linear coupled nonlinear partial differential equations is rehabilitated into non-linear ordinary differential equations and then exact expressions are derived for velocity and by means of a power series method with Kummer’s confluent hypergeometric functions for temperature

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

The paper discusses the flow of an incompressible non-Newtonian fluid 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 an increase in the visco-elastic parameter k1 and increase in the values of both the magnetic parameter and permeability parameter