Speaker
Description
The dynamic response of a 15-MW floating wind turbine supported by semi-submersible, spar, and tension-leg platforms is investigated through a series of aero-hydro-servo-elastic simulations. The turbine is subjected to turbulent inflow and irregular waves across a range of mean wind speeds and atmospheric stability conditions. Wind field and wave characteristics are derived from observations and hindcast data from offshore and near-coastal environments. Changes in atmospheric stability are represented through variations in mean wind profiles, turbulence intensity, turbulence spectra, and spatial coherence. The response of the three floating wind turbine concepts is assessed in terms of platform rigid-body motions, mooring-line tensions, tower and blade-root bending moments, and power production. Additional simulations with steady wind, regular waves, and free-decay tests are conducted to characterize the dynamic behaviour of the individual floating platforms and enhance understanding of the response under turbulent inflow. While similar trends are observed across the three concepts, platform-specific dynamics strongly influence the resulting turbine motions, structural loads, and generator power. The results highlight the importance of accounting for atmospheric stability in numerical analyses of large floating wind turbines.
| Topic Area | Wind Engineering and Industrial Aerodynamics |
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