Strictly Sinusoidal Flow Around a Stationary Cylinder

[+] Author and Article Information
E. G. Ward, C. Dalton

Department of Mechanical Engineering, University of Houston, Houston, Texas

J. Basic Eng 91(4), 707-713 (Dec 01, 1969) (7 pages) doi:10.1115/1.3571211 History: Received March 17, 1969; Online November 03, 2011


The forces exerted upon a cylinder subjected to a purely sinusoidal flow (no mean flow) are analyzed. The analysis considers flows in which symmetrically located vortex pairs are formed and shed from the cylinder. The flow field is described using potential flow theory and the lumped-vortex model is incorporated to handle the growth of the vortices. The instantaneous locations and strengths of the vortices are calculated. This information is used with the extended Blasius theorem in order to determine the forces acting upon the cylinder. The vortex growth behavior is compared to that obtained by experiments in which similar flows are observed.

Copyright © 1969 by ASME
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