Dynamic inflow model for a floating horizontal axis wind turbine in surge motion

Abstract. Floating offshore wind turbines may experience large surge motions, which can cause blade–vortex interaction if they are similar to or faster than the local speed. Previous research hypothesized that this phenomenon represented a turbulent wake state even vortex ring state, rendering actuator disc momentum theory and blade element invalid. This hypothesis is challenged, we show valid accurate in predicting induction at surge, for fast motions. To accomplish this, develop dynamic inflow model simulates vorticity–velocity system effect of motion. The model's predictions compared other authors' results, semi-free-wake model, models, CFD simulations an surge. results motion rotor–wake do not result application when applied correctly inertial reference frame. In all cases, excellent agreement with higher-fidelity simulations. proposed includes modified Glauert correction highly loaded streamtubes simple enough be easily implemented most models.