Analytical Solution of a Wave Diffraction Problem on a Submerged Cylinder
Publication: Journal of Engineering Mechanics
Volume 140, Issue 1
Abstract
Based on the methods of variable separation and matching eigenfunction expansion for the velocity potential, an analytical solution is developed for a wave diffraction problem on a submerged vertical cylinder in finite water depth. It is validated by comparison with the results from a higher-order boundary-element method and convergent examinations on the number of expanding models. Numerical examinations are carried out to investigate the influences of submerged depth, cylinder length, and water depth. The wave forces on the submerged cylinder are decreased with the increase of submerged depth. Compared with a floated cylinder, the surge force is always small, whereas the heave force and pitch moment may be larger than those on the floated cylinder at some frequencies. The influence of the cylinder length is also analyzed for surge, heave, and pitch results.
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Acknowledgments
This work is supported by the 973 program of China with Grant No. 2011CB013700-03 and programs from the NSFC of China with Grant Nos. 50921001 and 50909016.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 140 • Issue 1 • January 2014
Pages: 225 - 232
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jan 12, 2012
Accepted: Mar 19, 2013
Published online: Mar 20, 2013
Published in print: Jan 1, 2014
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