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Mathematical Problems in Engineering - Volume 2004 2004, Issue 4, Pages 347-376

Department of Mechanics, Darmstadt University of Technology, Hochschulstraße 1, Darmstadt 64289, Germany

Department of Mathematics, Quaid-i-Azam University, Islamabad 45320, Pakistan

Department of Mathematics, Pennsylvania State University, York Campus, York, PA 17403, USA

Received 5 June 2003; Revised 20 May 2004

Copyright © 2004 Hindawi Publishing Corporation. 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 effects of an Oldroyd-B fluid on the peristaltic mechanism are examined under the long wavelength assumption. Analytical expressions for the stream function, the axial velocity, and the pressure rise per wavelength are obtained up to the second order in the dimensionless wave number. The effects of the various parameters of interest on the flow are shown and discussed.

Author: T. Hayat, Y. Wang, K. Hutter, S. Asghar, and A. M. Siddiqui



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