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- W2000545390 abstract "The aim of this research is to develop a method to suppress the aerodynamic noise generated by a turbulent flow over a cavity. The results of an active control experiment and a passive control experiment are reported. In the active control experiment, the phases of velocity fluctuations along the spanwise direction are changed using piezo-electric actuators, so that the sound waves generated by these velocity fluctuations will eventually cancel each other in the far field. As a result of the active control, an aerodynamic noise suppression of 30 dB is achieved. In the passive control experiment, even a greater noise suppression effect, up to 65 dB is achieved. It is shown that the location and the size of the plate have a strong influence on the noise suppression for passive control." @default.
- W2000545390 created "2016-06-24" @default.
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- W2000545390 date "2003-01-01" @default.
- W2000545390 modified "2023-09-26" @default.
- W2000545390 title "Suppression of Aero-Acoustic Noise Over a Cavity" @default.
- W2000545390 doi "https://doi.org/10.1115/fedsm2003-45194" @default.
- W2000545390 hasPublicationYear "2003" @default.
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