Research Article
May 1976
Wave Forces on Vertical Circular Cylinder
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VIEW THE REPLYPublication: Journal of the Waterways, Harbors and Coastal Engineering Division
Volume 102, Issue 2
Abstract
The test is conducted at low values of Reynolds number (<3 × 104). The measured data are analyzed to calculate the hydrodynamic coefficients in the form of inertia, drag, and lift coefficients. The values obtained from the 1-ft (0.305-m) sections are used to correlate the measured force data on the entire tube. The coefficients are found to correlate well with the period parameter which follows Froude scale. Resultant forces are found to be as much as 60% higher than the in-line force. The lift coefficients are calculated up to the fifth harmonic and are represented as functions of period parameter. The frequencies of the lift force are found to have a definite trend with the number of eddies formed depending on the period parameter. Dependence on the period parameter makes scaling to other (e.g.,prototype) sizes relatively straightforward, except for the uncertainty of flow effects from the subcritical (e.g., in the test) to the supercritical (e.g., in the prototype) Reynolds number range.
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Information
Published In
Journal of the Waterways, Harbors and Coastal Engineering Division
Volume 102 • Issue 2 • May 1976
Pages: 203 - 221
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: May 1976
Published online: Feb 12, 2021
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Authors
Affiliations
Subrata K. Chakrabarti, M.ASCE
Head, Analytical Group, Marine Research and Development, Chicago Bridge & Iron Co., Plainfield, Ill.
Allan L. Wolbert
Mgr., Marine Computer Facilities, Chicago Bridge & Iron Co., Plainfield, Ill.
William A. Tam
Dir. of Marine Research and Development, Chicago Bridge & Iron Co., Plainfield, Ill.
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