Using The Helix Mixing Approach On Floating Offshore Wind Turbines

Abstract In recent years dynamic induction control has shown great potential in reducing wake-to-turbine interaction by increasing the mixing wake. With these wake methods thrust force will vary time. If applied to a floating offshore wind turbine, it cause platform move. this paper effect of Helix approach on DTU10MW turbine TripleSpar and its is evaluated. When at Strouhal equal 0.25, yaw movement excited close eigenfrequency resulting significant angles for small blade pitch angles. To understand impact motion wake, simulated using free vortex method as implemented Qblade. Under laminar inflow, results show that windspeed distance 5 rotor diameters downstream can be increased up 10% compared fixed-bottom turbine.