The flow over a National Renewable Energy Laboratory S825 airfoil was simulated for a chord Reynolds number of 7.5×105 and an angle of attack of 22.1 deg. These conditions approximately matched a blade element condition of 75% radius of 42-m-diameter wind turbine operating 2.5 rpm under a free-stream of 10 m/s. Computed flow of the uncontrolled case characterized massive separation from near the leading edge due to high angle of attack. With the active flow control by a dielectric barrier discharge plasma actuator, separation was reduced and the lift-to-drag ratio increased from 2.25 to 6.52. Impacts of the plasma actuator on the shear layer near the leading edge were discussed. Direct momentum addition provided by the case setup of plasma actuator considered in current study seemed to be a dominant factor to prevent the separation of shear layer near the leading edge rather than influence of small disturbances induced by the plasma actuator operated in a burst modulation. However, due to the high angle of attack and the thick airfoil, the control authority of the plasma actuator with the setup (i.e. the operating condition and number of plasma actuators installed on the wing surface) considered was insufficient to completely suppress the separation over the NREL S825 airfoil.
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ASME 2013 Fluids Engineering Division Summer Meeting
July 7–11, 2013
Incline Village, Nevada, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5555-3
PROCEEDINGS PAPER
Plasma Flow Control Simulation of an Airfoil of Wind Turbine at an Intermediate Reynolds Number Available to Purchase
Hikaru Aono,
Hikaru Aono
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
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Taku Nonomura,
Taku Nonomura
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
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Aiko Yakeno,
Aiko Yakeno
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
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Kozo Fujii,
Kozo Fujii
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
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Koichi Okada
Koichi Okada
Ryoyu Systems Co. Ltd., Nagoya, Aichi, Japan
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Hikaru Aono
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
Taku Nonomura
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
Aiko Yakeno
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
Kozo Fujii
Institute of Space and Astronautical Science, JAXA, Sagamihara, Kanagawa, Japan
Koichi Okada
Ryoyu Systems Co. Ltd., Nagoya, Aichi, Japan
Paper No:
FEDSM2013-16327, V01BT15A008; 10 pages
Published Online:
December 13, 2013
Citation
Aono, H, Nonomura, T, Yakeno, A, Fujii, K, & Okada, K. "Plasma Flow Control Simulation of an Airfoil of Wind Turbine at an Intermediate Reynolds Number." Proceedings of the ASME 2013 Fluids Engineering Division Summer Meeting. Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics. Incline Village, Nevada, USA. July 7–11, 2013. V01BT15A008. ASME. https://doi.org/10.1115/FEDSM2013-16327
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