This paper presents experimental work comparing several Dielectric Barrier Discharge (DBD) plasma actuator configurations for low Reynolds number separation control. Actuators studied here are being investigated for use in a closed loop separation control system. The plasma actuators were fabricated in the U.S. Air Force Research Laboratory Propulsion Directorate’s thin film laboratory and applied to a low Reynolds number airfoil that exhibits similar suction surface behavior to those observed on Low Pressure (LP) Turbine blades. In addition to typical asymmetric arrangements producing downstream jets, one electrode configurations was designed to produce an array of off axis jets, and one produced a spanwise array of linear vertical jets in order to generate vorticity and improved boundary layer to freestream mixing. The actuators were installed on an airfoil and their performance compared by flow visualization, surface stress sensitive film (S3F), and drag measurements. The experimental data provides a clear picture of the potential utility of each design. Experiments were carried out at four Reynolds numbers, 1.4 × 105, 1.0 × 105, 6.0 × 104, and 5.0 × 104 at a-1.5 deg angle of attack. Data was taken at the AFRL Propulsion Directorate’s Low Speed Wind Tunnel (LSWT) facility.
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January 2013
Research-Article
Experimental Comparison of DBD Plasma Actuators for Low Reynolds Number Separation Control
Christopher R. Marks,
Christopher R. Marks
1
1Currently at the University of Dayton Research Institute, Aerospace Mechanics Division, 300 College Park, Dayton, OH, 45469-0110.
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Rolf Sondergaard,
Mitch Wolff,
Rich Anthony
Rich Anthony
e-mail: richard.anthony@wpafb.af.mil
Propulsion Directorate,
AFRL/RZTT Bldg 18,
1950 Fifth St.,
Wright Patterson Air Force Base,
U.S. Air Force Research Laboratory
,Propulsion Directorate,
AFRL/RZTT Bldg 18,
1950 Fifth St.,
Wright Patterson Air Force Base,
OH, 45433
Search for other works by this author on:
Christopher R. Marks
Rolf Sondergaard
e-mail: rolf.sondergaard@wpafb.af.mil
Mitch Wolff
e-mail: james.wolff2@wpafb.af.mil
Rich Anthony
e-mail: richard.anthony@wpafb.af.mil
Propulsion Directorate,
AFRL/RZTT Bldg 18,
1950 Fifth St.,
Wright Patterson Air Force Base,
U.S. Air Force Research Laboratory
,Propulsion Directorate,
AFRL/RZTT Bldg 18,
1950 Fifth St.,
Wright Patterson Air Force Base,
OH, 45433
1Currently at the University of Dayton Research Institute, Aerospace Mechanics Division, 300 College Park, Dayton, OH, 45469-0110.
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received July 20, 2011; final manuscript received August 31, 2011; published online October 30, 2012. Editor: David Wisler.
This material is declared a work of the US Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited.
J. Turbomach. Jan 2013, 135(1): 011024 (11 pages)
Published Online: October 30, 2012
Article history
Received:
July 20, 2011
Revision Received:
August 31, 2011
Citation
Marks, C. R., Sondergaard, R., Wolff, M., and Anthony, R. (October 30, 2012). "Experimental Comparison of DBD Plasma Actuators for Low Reynolds Number Separation Control." ASME. J. Turbomach. January 2013; 135(1): 011024. https://doi.org/10.1115/1.4006517
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