Active Control of Jet–Wing Interaction Noise Using Plasma Actuators in a Narrow Frequency Band

For a jet located near the wing, instability waves present in jet mixing layer scatter on the wing trailing edge, leading to additional noise generation. In this article, the possibility of reducing this noise by active cancellation of natural instability waves has been experimentally studied. The a...

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Bibliographic Details
Published in:Acoustical physics 2023-04, Vol.69 (2), p.193-205
Main Authors: Kopiev, V. F., Bychkov, O. P., Kopiev, V. A., Faranosov, G. A., Moralev, I. A., Kazansky, P. N.
Format: Article
Language:English
Subjects:
Acoustics
Active control
Actuators
Analysis
Atmospheric and Aeroacoustics
Control systems
Data processing
Dielectric barrier discharge
Far fields
Frequencies
Instability waves (fluids)
Microphones
Near fields
Noise generation
Noise reduction
Perturbation
Physics
Physics and Astronomy
Turbulent jets
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Description
Summary:For a jet located near the wing, instability waves present in jet mixing layer scatter on the wing trailing edge, leading to additional noise generation. In this article, the possibility of reducing this noise by active cancellation of natural instability waves has been experimentally studied. The active control system consists of near-field microphones from which the feedback signal is taken, a data processing module for signal filtering, and a high-frequency dielectric barrier discharge plasma actuator. Decrease in pressure perturbations in the near field of a turbulent jet associated with axisymmetric instability waves in a narrow frequency band was demonstrated. It was shown that this reduction leads to a corresponding noise decrease in the far field.
ISSN:1063-7710
1562-6865
DOI:10.1134/S1063771022600668