Effects of lubrication on the steady oblique stagnation–point flow of a couple stress fluids

Steady oblique stagnation–point flow of a couple stress fluids on a flat plate is investigated numerically by implementing a well reputed Keller–box method. The plate is lubricated with a slim coating of power–law fluid. Governing partial differential equations of couple stress fluid are converted into ordinary differential equations using similarity transformations. Analysis has been performed by imposing continuity of velocity and shear stress of both the fluids at the interface. Influence of slip and couple stress parameters on the horizontal and shear velocity components, wall shear stress and stagnation point are presented graphically and in the tabular form. The limiting cases for the viscous fluid and no–slip condition have been deduced from the present solutions. The results are compared with already recorded results in the existing research articles and are found in excellent agreement.