Response Amplitude and Hydrodynamic Force for a Buoy over a Convex
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 132, Issue 2
Abstract
A buoy as an offshore structure is often placed over a convex such as a caisson or a submerged island. The hydrodynamic fluid/solid interaction becomes more complex due to the convex compared with that on the flat. Both the buoy and the convex are idealized as vertical cylinders. Linear potential theory is used to investigate the response amplitude and the hydrodynamic force for a buoy over a convex due to diffraction and radiation in water of finite depth. These are derived from the total velocity potential. A set of theoretical added mass, damping coefficient, and exciting force expressions have been proposed. Analytical results of the response amplitude and hydrodynamic force are given. Finally, the numerical results show that the effect of the convex on the response amplitude and hydrodynamic force for the buoy is ignored if the size of the convex is relatively smaller.
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Acknowledgments
This work is supported by the National High Technology Research and Development Program of China (No. UNSPECIFIED2001AA516010) and the CAS Pilot Project of the National Knowledge Innovation Program (KIP) (No. UNSPECIFIEDKGCX2-SW-305).
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Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 132 • Issue 2 • March 2006
Pages: 97 - 105
Copyright
© 2006 ASCE.
History
Received: Mar 30, 2004
Accepted: May 17, 2005
Published online: Mar 1, 2006
Published in print: Mar 2006
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