Wave Force Coefficient Correlation Based on Wake Volume Scaling

[+] Author and Article Information
T. E. Horton, M. J. Feifarek, H. Golestanian

School of Engineering, University of Mississippi, 209 St. Andrews Cr., Oxford, MS 38655

J. Offshore Mech. Arct. Eng 116(2), 97-101 (May 01, 1994) (5 pages) doi:10.1115/1.2920138 History: Received May 19, 1993; Revised March 11, 1994; Online June 12, 2008


A correlation of the hydrodynamic drag force on a cylinder for a periodic motion is demonstrated. The correlation indicates the dependance of the unsteady flow drag coefficient on the wake volume parameter. This parameter is a measure of the volume of flow through the boundary layer and into the wake in a half-cycle. For a laminar boundary layer, this dimensionless parameter is proportional to the Keulegan-Carpenter number and inversely proportional to the square root of the Reynolds number. Using wake volume scaling, drag coefficients were effectively collapsed into a single curve.

Copyright © 1994 by The American Society of Mechanical Engineers
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