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Lookup NU author(s): Dr Longfei Xiao, Professor Longbin Tao
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© 2015 by ASME.Deep draft semisubmersible (DDS) concepts have been developed recently in order to improve the vertical motion characteristics of the platform, due to the smaller wave exciting forces on the pontoons than a conventional semisubmersible. However, the DDS may experience critical vortex-induced motions (VIM) stemming from the fluctuating forces in a strong current environment. Aiming to investigate the excitation loads and the mechanism of VIM, Computational Fluid Dynamics (CFD) analyses are performed to study the flow around the DDS in a cross-flow. Special attentions are paid to the effect of the pontoon and the heading angle. Good agreement between CFD simulations and model test results for the current loads of a DDS is observed. Detailed computational results including hydrodynamic loads and flow patterns are presented.
Author(s): Liu M, Xiao L, Haining LYU, Tao L
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: ASME 2015 34th International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Year of Conference: 2015
Pages: 1-7
Acceptance date: 01/01/1900
Publisher: American Society of Mechanical Engineers (ASME)
URL: http://doi.org/10.1115/OMAE201541764
DOI: 10.1115/OMAE201541764
Library holdings: Search Newcastle University Library for this item
ISBN: 9780791856475
