Smart rotor: Controlling dynamic stall by means of an actuated flap

Marco Raiola, S Discetti, Andrea Ianiro, Daniele Ragni, Gijs van Kuik, Jan-Willem van Wingerden

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Dynamic stall limits the operative life of rotors, due to a periodic occurrence of force and moment peaks that can lead to blade structural-failure. The aim of this study is to investigate the possibility of controlling cyclic forces on wind turbine blades by means of Trailing Edge Flaps. The periodic motion of a rotor blade is reproduced by a 2D wing pitching and plunging in a free-stream flow at 푹풆=ퟏ.ퟑ× ퟏퟎퟓ. The wing is equipped with 50 pressure taps able to provide with a time-resolved distribution of the pressure on the wing. A trailing-edge flap is installed in the wing and actuated with respect to the wing motion. Flap actuations in phase opposition to the rotor motion are found to maximize the lift integral over the period while minimizing the load fluctuations over time.
Original languageEnglish
Title of host publicationProceedings of the 8th AIAA Flow Control Conference
Place of PublicationReston, VA, USA
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages11
ISBN (Electronic)978-1-62410-432-9
DOIs
Publication statusPublished - 2016
Event8th AIAA Flow Control Conference - Washington, United States
Duration: 13 Jun 201617 Jun 2016
Conference number: 8
http://arc.aiaa.org/doi/book/10.2514/MFC16

Conference

Conference8th AIAA Flow Control Conference
CountryUnited States
CityWashington
Period13/06/1617/06/16
Internet address

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    Raiola, M., Discetti, S., Ianiro, A., Ragni, D., van Kuik, G., & van Wingerden, J-W. (2016). Smart rotor: Controlling dynamic stall by means of an actuated flap. In Proceedings of the 8th AIAA Flow Control Conference [AIAA 2016-4242] American Institute of Aeronautics and Astronautics Inc. (AIAA). https://doi.org/10.2514/6.2016-4242