AIAA Paper 2010: WT control with high deflection Fexible Flap
The paper presents the test process, methodology and results of wind tunnel test campaigns on the investigation of the flexible flap configuration as a possible means of aerodynamic control of wind turbines. The test campaign took place at the HFI/TU Berlin wind tunnel. Measurements were performed with a model of the DU96W180 airfoil as well as with the modified-DU96W180 test airfoil section equipped with the flexible flap assembly in flow with Reynolds number Re equal to 1.3x10⁶. The flexible flap was tested in various positive and negative deflections in order to extract its complete operational curve.