We consider the problem of fully nonlinear three-dimensional wave interactions with floating bodies with or without a forward speed. A highly efficient time-domain computational method is developed in the context of potential flow formulation using the pre-corrected Fast Fourier Transform (PFFT) algorithm based on a high-order boundary element method. The method reduces the computational effort in solving the boundary-value problem at each time step to O(NlnN) from O(N2∼3) of the classical boundary element methods, where N is the total number of unknowns. The high efficiency of this method allows accurate computations of fully-nonlinear hydrodynamic loads, wave runups, and motions of surface vessels and marine structures in rough seas. We apply this method to study the hydrodynamics of floating objects with a focus on the understanding of fully nonlinear effects in the presence of extreme waves and large-amplitude body motions.
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ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering
June 6–11, 2010
Shanghai, China
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4911-8
PROCEEDINGS PAPER
Efficient Computations of Fully-Nonlinear Wave Interactions With Floating Structures
Hongmei Yan,
Hongmei Yan
Massachusetts Institute of Technology, Cambridge, MA
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Yuming Liu
Yuming Liu
Massachusetts Institute of Technology, Cambridge, MA
Search for other works by this author on:
Hongmei Yan
Massachusetts Institute of Technology, Cambridge, MA
Yuming Liu
Massachusetts Institute of Technology, Cambridge, MA
Paper No:
OMAE2010-20412, pp. 645-655; 11 pages
Published Online:
December 22, 2010
Citation
Yan, H, & Liu, Y. "Efficient Computations of Fully-Nonlinear Wave Interactions With Floating Structures." Proceedings of the ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 3. Shanghai, China. June 6–11, 2010. pp. 645-655. ASME. https://doi.org/10.1115/OMAE2010-20412
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