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Mathematical Problems in Engineering
Volume 2013, Article ID 637285, 7 pages
Research Article

Boundary Layer Flow Past a Wedge Moving in a Nanofluid

1Department of Engineering Sciences, PN Engineering College, National University of Sciences and Technology, Karachi 75350, Pakistan
2Faculty of Mathematics, University of Cluj, CP 253, 3400 Cluj, Romania

Received 30 March 2013; Revised 16 April 2013; Accepted 19 April 2013

Academic Editor: Oluwole Daniel Makinde

Copyright © 2013 Waqar A. Khan and I. Pop. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The problem of steady boundary layer flow past a stretching wedge with the velocity in a nanofluid and with a parallel free stream velocity is numerically studied. It is assumed that at the stretching surface the temperature and the nanoparticle fraction take the constant values and , respectively. The ambient values (inviscid fluid) of and are denoted by and , respectively. The boundary layer governing partial differential equations of mass, momentum, thermal energy, and nanoparticles recently proposed by Kuznetsov and Nield (2006, 2009), are reduced to ordinary differential equations along with the corresponding boundary conditions. These equations are solved numerically using an implicit finite-difference method for some values of the governing parameters, such as , , , , , and , which are the measure of the pressure gradient, moving parameter, Prandtl number, Lewis number, the Brownian motion parameter, and the thermophoresis parameter, respectively.