Suppression of aero-acoustic noise over a cavity

Masafumi Kuroda; Ao Kui Xiong; Seiichiro Izawa; Yu Fukunishi

doi:10.1115/fedsm2003-45194

Suppression of aero-acoustic noise over a cavity

Masafumi Kuroda, Ao Kui Xiong, Seiichiro Izawa, Yu Fukunishi

ENG - Mechanical Systems Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

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.

Original language	English
Title of host publication	Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
Subtitle of host publication	Volume 2, Part B, Symposia
Editors	A. Ogut, Y. Tsuji, M. Kawahashi
Publisher	American Society of Mechanical Engineers
Pages	977-982
Number of pages	6
ISBN (Print)	0791836967, 9780791836965
DOIs	https://doi.org/10.1115/fedsm2003-45194
Publication status	Published - 2003
Event	4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States Duration: 2003 Jul 6 → 2003 Jul 10

Publication series

Name	Proceedings of the ASME/JSME Joint Fluids Engineering Conference
Volume	2 B

Other

Other	4th ASME/JSME Joint Fluids Engineering Conference
Country/Territory	United States
City	Honolulu, HI
Period	03/7/6 → 03/7/10

ASJC Scopus subject areas

Mechanical Engineering
Fluid Flow and Transfer Processes

Access to Document

10.1115/fedsm2003-45194

Cite this

Kuroda, M., Xiong, A. K., Izawa, S., & Fukunishi, Y. (2003). Suppression of aero-acoustic noise over a cavity. In A. Ogut, Y. Tsuji, & M. Kawahashi (Eds.), Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference: Volume 2, Part B, Symposia (pp. 977-982). (Proceedings of the ASME/JSME Joint Fluids Engineering Conference; Vol. 2 B). American Society of Mechanical Engineers. https://doi.org/10.1115/fedsm2003-45194

Suppression of aero-acoustic noise over a cavity. / Kuroda, Masafumi; Xiong, Ao Kui; Izawa, Seiichiro et al.
Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference: Volume 2, Part B, Symposia. ed. / A. Ogut; Y. Tsuji; M. Kawahashi. American Society of Mechanical Engineers, 2003. p. 977-982 (Proceedings of the ASME/JSME Joint Fluids Engineering Conference; Vol. 2 B).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kuroda, M, Xiong, AK, Izawa, S & Fukunishi, Y 2003, Suppression of aero-acoustic noise over a cavity. in A Ogut, Y Tsuji & M Kawahashi (eds), Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference: Volume 2, Part B, Symposia. Proceedings of the ASME/JSME Joint Fluids Engineering Conference, vol. 2 B, American Society of Mechanical Engineers, pp. 977-982, 4th ASME/JSME Joint Fluids Engineering Conference, Honolulu, HI, United States, 03/7/6. https://doi.org/10.1115/fedsm2003-45194

Kuroda M, Xiong AK, Izawa S, Fukunishi Y. Suppression of aero-acoustic noise over a cavity. In Ogut A, Tsuji Y, Kawahashi M, editors, Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference: Volume 2, Part B, Symposia. American Society of Mechanical Engineers. 2003. p. 977-982. (Proceedings of the ASME/JSME Joint Fluids Engineering Conference). doi: 10.1115/fedsm2003-45194

Kuroda, Masafumi ; Xiong, Ao Kui ; Izawa, Seiichiro et al. / Suppression of aero-acoustic noise over a cavity. Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference: Volume 2, Part B, Symposia. editor / A. Ogut ; Y. Tsuji ; M. Kawahashi. American Society of Mechanical Engineers, 2003. pp. 977-982 (Proceedings of the ASME/JSME Joint Fluids Engineering Conference).

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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.",

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N2 - 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.

AB - 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.

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Suppression of aero-acoustic noise over a cavity

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