V. F. Kopiev, P. N. Kazanskii, V. A. Kopiev, I. A. Moralev, I. V. Pankratov
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Active Control of Flow-Induced Cavity Noise Using a Plasma Actuator
An experimental study of the effect of high-frequency surface barrier discharge plasma actuators on flow-induced cavity tonal noise has been carried out. Tonal noise reduction in the far field is demonstrated using two approaches: excitation of artificial waves corresponding to high-frequency modes and flow stabilization using a plasma actuator in a feedback loop. It is shown that the stabilizing feedback loop makes it possible to significantly ( up to 10 dB) suppress the fundamental tone without excitation of higher-frequency oscillations. It is shown that these plasma actuators can reduce flow cavity noise within the range of velocities (up to 60 m/s) typical of aircraft landing approach
期刊介绍:
Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.