Boundary-Layer Flow of a Nano-Fluid over a Moving Surface with Fluid Injection or Suction

Abstract

The boundary-layer flow of a nano-fluid over a moving surface is simulated, by solving the governing equations, using an efficient implicit finite difference scheme called the Keller’s box scheme. This scheme is second order accurate even on a non-uniformly spaced grid. Surface injection or suction is considered through appropriate boundary conditions. The effect of nano-particles is taken into account by incorporating the thermo-physical property models. The effect of wall injection or suction, as well as the moving surface velocity, affects the wall shear stress and heat transfer rates in a complex manner inducing flow separation in certain cases. These results are very useful in assessing the effectiveness of the use of different nano-fluids for practical engineering applications.