Table of Contents
Journal of Fluids
Volume 2014 (2014), Article ID 206846, 7 pages
http://dx.doi.org/10.1155/2014/206846
Research Article

Viscous Flows Driven by Uniform Shear over a Porous Stretching Sheet in the Presence of Suction/Blowing

1Department of Mathematics, A.K.P.C Mahavidyalaya, Bengai, Hooghly 712 611, India
2Department of Mathematics, The University of Burdwan, West Bengal 713104, India

Received 21 February 2014; Revised 10 May 2014; Accepted 12 May 2014; Published 25 May 2014

Academic Editor: Boming Yu

Copyright © 2014 Samir Kumar Nandy and Swati Mukhopadhyay. 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.

Abstract

An analysis is carried out to study the steady two-dimensional flow of an incompressible viscous fluid past a porous deformable sheet, which is stretched in its own plane with a velocity proportional to the distance from the fixed point subject to uniform suction or blowing. A uniform shear flow of strain rate β is considered over the stretching sheet. The analysis of the result obtained shows that the magnitude of the wall shear stress increases with the increase of suction velocity and decreases with the increase of blowing velocity and this effect is more pronounced for suction than blowing. It is seen that the horizontal velocity component (at a fixed streamwise position along the plate) increases with the increase in the ratio of shear rate β and stretching rate (c) (i.e., β/c) and there is an indication of flow reversal. It is also observed that this flow reversal region increases with the increase in β/c.