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Title: Leading edge vortex control on a delta wing with dielectric barrier discharge plasma actuators
Authors: Shen, L 
Wen, CY 
Issue Date: 2017
Publisher: American Institute of Physics
Source: Applied physics letters, 2017, v. 110, no. 25, 251904 How to cite?
Journal: Applied physics letters 
Abstract: This paper presents an experimental investigation of the application of dielectric barrier discharge (DBD) plasma actuators on a slender delta wing to control the leading edge vortices (LEVs). The experiments are conducted in a wind tunnel with a Reynolds number of 50 000 based on the chord length. The smoke flow visualization reveals that the DBD plasma actuators at the leading edges significantly modify the vortical flow structure over the delta wing. It is noted that symmetric control at both semi-spans and asymmetric control at a single semi-span leads to opposite effects on the local LEVs. Particle image velocimetry (PIV) indicates that the shear layer is deformed by the actuators. Therefore, both the strength and the shape of the LEV cores are deeply affected. The six-component force measurement shows that the DBD plasma actuators have a limited effect on lift and drag while inducing relatively large moments. This suggests that the DBD plasma actuator is a promising technique for delta wing maneuvering. Published by AIP Publishing.
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.4989901
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