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Intact and damaged survivability of an offshore floating-moored OWC device
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Abstract
This paper outlines physical model experiments of a small (1:50) scale floating–moored OWC investigating the influences of mooring line failure at different instants when subjected to unidirectional regular waves. Additionally, a 3D Computational Fluid Dynamics (CFD) model is developed and validated in good agreement against the experiments. This combined CFD and experimental approach is then used to investigate the transient effects and the impact of using a mooring system with redundancy when damage occurs to mooring lines during an extreme wave condition. In the test conditions presented, it was found that the transient overshooting increases the maximum mooring line tension by 23 % and 19 % as a result of losing 50 % and 100 % (full–loss) of mooring lines at one of the forward legs respectively.
Item Type: | Conference Publication |
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Authors/Creators: | Elhanafi, A and Macfarlane, G and Fleming, A and Leong, Z |
Keywords: | offshore floating moored OWC, experiments, survivability, mooring line failure, CFD |
Journal or Publication Title: | Proceedings of the 27th (2017) annual International Offshore and Polar Engineering Conference |
Publisher: | International Society of Offshore and Polar Engineers |
ISSN: | 1098-6189 |
Copyright Information: | Copyright 2017 International Society of Offshore and Polar Engineers |
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