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Assessment of Dynamic Responses of 5 Mw Floating Offshore Wind Turbine Platforms in Intermediate Water Depth

Cutler, J, Bashir, M, Yang, Y, Wang, J and Loughney, S (2021) Assessment of Dynamic Responses of 5 Mw Floating Offshore Wind Turbine Platforms in Intermediate Water Depth. In: CORE 2021 Conference Proceedings . (5th International Conference on Offshore Renewable Energy, 26th-27th August 2021, Virtual Event).

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This paper presents a comparative numerical study on the dynamic responses of three Floating Offshore Wind Turbine (FOWT) concepts operating, in 150m of water. The study examined three concepts (OC3-Hywind spar, ITI Energy barge and a novel catamaran FOWT) all supporting the NREL 5MW reference wind turbine. The three concepts were modelled using OpenFAST and ANSYS AQWA numerical tools coupled via a DLL, namely F2A, in order to conduct efficient aero-hydro-servo-elastic simulations. F2A has the advantage of combining the superiority of AQWA in predicting hydrodynamic loads and mooring tensions with the aerodynamic capabilities of OpenFAST to perform fully coupled simulations. Assessment of the FOWTs’ dynamic behaviors and performance is carried out following the prediction of dynamic responses. A comparison of the rigid body motion responses of the fully coupled models, including mooring line tensions, is presented. More specifically, performance indicators of the wind turbines including dynamic responses, stability and power production under operational conditions are presented. The results and conclusions of this paper can provide greater insight into the behavior of different FOWT concepts operating under different environmental conditions as well as resolve the fundamental design trade-offs between different FOWT concepts.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Engineering
Date Deposited: 10 Feb 2022 09:27
Last Modified: 13 Apr 2022 15:18
URI: https://researchonline.ljmu.ac.uk/id/eprint/15772
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