@inproceedings{01JNNXDDKHBM2M7874QDTH6HM9,
  abstract     = {{This paper focuses on the impact of various wind and waves conditions to the motion, tower base forces/moments and mooring line tension of a reference floating offshore wind turbine (FOWT) platform. The simulations are performed using the time-domain open-source software named OpenFAST to assess various operational and damaged scenarios. In total, 768 irregular wave and 384 regular wave cases are simulated. The irregular wave simulation cases includes the following combinations: 4 significant wave heights, 4 wave periods, 4 wind speeds, 2 wind fields (steady and turbulent) and 2 operational scenarios (mooring lines intact and loss of 1 fairlead). The combinations in the regular wave simulations are similar except for the wind conditions that are only simulated for 2 different wind speeds.
 Selective simulation results are shown to assess the impact of different hydrodynamic modelling:
•	potential flow, 
•	potential flow combined with Morison drag (hybrid) 
•	hybrid approach with the inclusion of second order wave forces via Quadratic Transfer Function (QTF). 
The importance of including Morison drag term is demonstrated by assessing the platform’s transient motion and the contribution of the heave disk to which the viscous effect is modelled with the Morison equation. The impact of mean-drift from the difference-frequency second-order wave forces is evaluated by analyzing the surge motion of the platform, comparing it with the potential-flow-only model. Analyzing the Power Spectral Density (PSD) of the tower base moment reveals several peaks in the frequency range corresponding to the contribution of the sum-frequency QTF.  These contributions of including full QTF are assessed for different wave periods to which the impact is more apparent for shorter wave periods. 
Additionally, the loss of one mooring line is simulated for all wind and wave conditions. This damaged scenario changes the behavior of the platform. Not only does it give rise in the fairlead tension amplitude but also induces higher load in the lower frequencies region, visible on the PSD of the fairlead tension. Simulating a turbulent wind field is found to increase the tower base moment amplitude by up to two folds compared to the steady wind field. The wind speed fluctuation in a turbulent wind field affects the thrust force which is transferred to the tower base. Lastly, different wind directions are analyzed to assess the impact of aerodynamic load to the mooring system, keeping the same wave direction. The wind-wave misalignment induces higher peaks in the lower frequency region in the fairlead tension PSD. The dataset containing a total of 1152 simulation results are uploaded to an open-access repository and are publicly available.}},
  author       = {{Pribadi, Ajie Brama Krishna and Al-Ghuwaidi, Abdulelah and Lataire, Evert}},
  booktitle    = {{EERA DeepWind Conference 2025, Abstracts}},
  language     = {{eng}},
  location     = {{Trondheim, Norway}},
  title        = {{Open-access simulation dataset on floating wind turbine DeepCwind OC4 semi-submersible in wind and waves}},
  url          = {{https://www.sintef.no/projectweb/eera-deepwind/eera-deepwind-conference/previous-conferences/2025-conference/}},
  year         = {{2025}},
}