Effect of exponentially variable viscosity and permeability on Blasius flow of Carreu nanofluid ...

The present investigation brings attention regarding the effect of exponential variable viscosity modeled by Vogel and variable permeability on stagnation point flow of Carreu nanofluid over an electromagnetic plate through a porous medium. Brownian motion and thermophoretic diffusion mechanism are taken into consideration. An efficient fourth order R K method along with shooting technique is used to obtain the required solution of the non-dimensional modeled equations. The contribution of the present study is that augmented electromagnetic field strength due to suitable arrangement of the plate and that of porosity parameter yield an accelerated motion while that of viscosity parameter produces retarded motion of shear thickening fluid, however, contrary to shear thiing fluid. At the same time it brings about an outcome that inclusion of porous matrix controls the thermal as well as concentration boundary layers while enhanced Brownian motion exhibits diametrically opposite trend for them in response to shear thickening fluid.