Magnetohydrodynamic (MHD) stagnation point flow of nanofluid past a stretching sheet with convective boundary condition

Abstract

In this study, the problem of boundary layer flow of magnetohydrodynamic stagnation point flow past a stretching sheet with convective heating is examined. Condition of zero normal flux of nanoparticles at the wall for the stretched flow is the most recent phenomena that have yet to be explored in the literature. The nanoparticle fractions on the boundary are considered to be passively controlled. Similarity transformation is used to reduce the governing non-linear boundary value problems into coupled high-order non-linear ordinary differential equation. These equations were numerically solved using the function bvp4c from the matlab for different values of governing parameters. Numerical results are obtained for velocity, temperature and concentration, as well as the skin friction coefficient and local Nusselt number. The results indicate that the skin friction coefficient Cf increases as the values of magnetic parameter M increase and decreases as the values of velocity ratio parameter A increase. The local Nusselt number ′(0) decreases as the values of thermophoresis parameter Nt increase and increases as the values of both Biot number Bi and Prandtl number Pr increase. A comparison with previous studies available in the literature has been done and an excellent agreement has been confirmed.