Slip Effects on the Flow and Heat Transfer of Nanofluids Over an Unsteady Stretching Surface with Heat Generation/Absorption

The unsteady boundary layer flow and heat transfer of nanofluids over a stretching permeable surface in the presence of heat generation/absorption, velocity and thermal slips has been investigated numerically. Four different types of nanoparticles, namely Copper Cu, silver Ag, Alumina Al2O3, and Titania TiO2 are considered by using water as a base fluid with Prandtl number Pr = 6.785. The set of governing boundary layer equations and the boundary condition are transformed into a set of nonlinear ordinary differential equations with the relevant boundary conditions. The transformed equations are solved numerically by using a shooting method with fourth order Runge-Kutta integration scheme. Comparisons of the present paper with the existing results in the literature have been made and good agreements were found. Numerical results for velocity, temperature profiles, skin friction coefficient and Nusselt number are presented through graphs and tables for pertinent parameters to show interesting aspects of the solution.