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

doi:10.2514/6.2016-4242

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 volume › Conference contribution › Scientific › peer-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 language	English
Title of host publication	Proceedings of the 8th AIAA Flow Control Conference
Place of Publication	Reston, VA, USA
Publisher	American Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages	11
ISBN (Electronic)	978-1-62410-432-9
DOIs	https://doi.org/10.2514/6.2016-4242
Publication status	Published - 2016
Event	8th AIAA Flow Control Conference - Washington, United States Duration: 13 Jun 2016 → 17 Jun 2016 Conference number: 8 http://arc.aiaa.org/doi/book/10.2514/MFC16

Conference

Conference	8th AIAA Flow Control Conference
Country/Territory	United States
City	Washington
Period	13/06/16 → 17/06/16
Internet address	http://arc.aiaa.org/doi/book/10.2514/MFC16

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@inproceedings{bbe57d6595ad49b3a0ecee0699ef8fef,

title = "Smart rotor: Controlling dynamic stall by means of an actuated flap",

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. ",

author = "Marco Raiola and S Discetti and Andrea Ianiro and Daniele Ragni and {van Kuik}, Gijs and {van Wingerden}, Jan-Willem",

year = "2016",

doi = "10.2514/6.2016-4242",

language = "English",

booktitle = "Proceedings of the 8th AIAA Flow Control Conference",

publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",

address = "United States",

note = "8th AIAA Flow Control Conference ; Conference date: 13-06-2016 Through 17-06-2016",

url = "http://arc.aiaa.org/doi/book/10.2514/MFC16",

}

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), Reston, VA, USA, 8th AIAA Flow Control Conference, Washington, District of Columbia, United States, 13/06/16. https://doi.org/10.2514/6.2016-4242

Smart rotor: Controlling dynamic stall by means of an actuated flap. / Raiola, Marco; Discetti, S; Ianiro, Andrea et al.
Proceedings of the 8th AIAA Flow Control Conference. Reston, VA, USA: American Institute of Aeronautics and Astronautics Inc. (AIAA), 2016. AIAA 2016-4242.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Smart rotor

T2 - 8th AIAA Flow Control Conference

AU - Raiola, Marco

AU - Discetti, S

AU - Ianiro, Andrea

AU - Ragni, Daniele

AU - van Kuik, Gijs

AU - van Wingerden, Jan-Willem

N1 - Conference code: 8

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Y1 - 2016

N2 - 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.

AB - 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.

U2 - 10.2514/6.2016-4242

DO - 10.2514/6.2016-4242

M3 - Conference contribution

BT - Proceedings of the 8th AIAA Flow Control Conference

PB - American Institute of Aeronautics and Astronautics Inc. (AIAA)

CY - Reston, VA, USA

Y2 - 13 June 2016 through 17 June 2016

ER -

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

Abstract

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