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Dynamic Response of SPAR-Type Floating Offshore Wind Turbine under Wave Group Scenarios

doi: 10.3390/en15134870
Numerical simulations are performed within the time domain to investigate the dynamic behaviors of an SPAR-type FOWT under wave group conditions. Towards this goal, the OC3 Hywind SPAR-type FOWT is adopted, and a JONSWAP (Joint North Sea Wave Project)-based wave group is generated by the envelope amplitude approach. The FOWT motion under wave group conditions, as well as the aerodynamic, hydrodynamic, and mooring performances, is simulated by our established in-house code. The rotating blades are modelled by the blade element momentum theory. The wave-body interaction effect is calculated by the three-dimensional potential theory. The mooring dynamics are also taken into consideration. According to the numerical results, the SPAR buoy motions are slightly increased by the wave group, while the heave motion is significantly amplified. Both the aerodynamic performance and the mooring tension are also influenced by the wave group. Furthermore, the low-frequency resonant response could be more easily excited by the wave group.
- Tianjin University China (People's Republic of)
- TIANJIN UNIVERSITY China (People's Republic of)
- Tianjin University China (People's Republic of)
- State Key Laboratory of Hydraulic Engineering Simulation and Safety China (People's Republic of)
- State Key Laboratory of Hydraulic Engineering Simulation and Safety China (People's Republic of)
wave-body interaction, Technology, T, FOWT; SPAR; wave group; wave-body interaction; dynamic response, wave group, FOWT, SPAR, dynamic response
wave-body interaction, Technology, T, FOWT; SPAR; wave group; wave-body interaction; dynamic response, wave group, FOWT, SPAR, dynamic response
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