Parameter study of the deformable trailing edge flap and the flow physics behind

Based on the indigenously-developed aero-servo-elastic platform containing an external deformable trailing edge ap controller, firstly this paper analyzes in detail the effect of Flap param- eters on load reduction of the smart control system under two differently typical wind conditions, that's Uhub =8 m/s and Uhub=16 m/s. Finally, based on one set of typical Flap parameters, this paper tries to further explore the flow control mechanism behind. From the parameter study, I have found that the Flap-location parameter has different effects on load reduction under the two different wind conditions. From the control mechanism analysis, I have found that the reason why this Flap control can reduce the fatigue load suffered by wind turbine blades is that this actively deformable trailing edge ap uncouples the strong interactions between uid and blade.