Mathematical Problems in Engineering
Volume 2007 (2007), Article ID 42651, 11 pages
Research Article

On the Steady Flow of a Second-Grade Fluid between Two Coaxial Porous Cylinders

M. Emin Erdoğan and C. Erdem İmrak

Mechanical Engineering Department, Faculty of Mechanical Engineering, Istanbul Technical University, Gümüşsuyu, Istanbul 34437, Turkey

Received 8 February 2007; Accepted 3 June 2007

Academic Editor: Kumbakonam Rajagopal

Copyright © 2007 M. Emin Erdoğan and C. Erdem İmrak. 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.


An exact solution of an incompressible second-grade fluid for flow between two coaxial porous cylinders is given. The velocity profiles for various values of the cross-Reynolds number and the elastic number are plotted. It is found that for large values of the cross-Reynolds number, the velocity variation near boundaries shows a different behaviour than that of the Newtonian fluid.