FSI Simulations of IEA-15MW Wind Turbine under Gust Conditions

Blade-resolved aeroelastic simulations of the IEA 15 MW wind turbine under the influence of wind gusts are performed in this study using OpenFOAM. The study investigates the impact of gusts on aerodynamic loads, blade tip deflection, and wake characteristics. The spatial and temporal variations of gusts are analyzed to assess their effects on the 15 MW turbine. Additionally, simulations incorporate the influence of the velocity boundary layer shear. The wake characteristics are examined using iso-Q surfaces, velocity contours, and vorticity distributions, while aeroelastic effects are evaluated through blade tip displacement, turbine torque, and root bending moment plots. The results indicate that the deflection and loads on the turbine blade are strongly influenced by the spatial distribution of the gust, along with its evolution due to the atmospheric boundary layer.