Control of supersonic jet noise using a mesh screen

Y. H. Kweon, C. M. Lim, Y. Miyazato, Toshiyuki Aoki, H. D. Kim, T. Setoguchi

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

This paper describes an experimental work to control supersonic jet noise using a mesh screen that is placed at the nozzle exit plane. The mesh screen is a wire-gauze screen that is made of long stainless wires with a very small diameter. The nozzle pressure ratio is varied to obtain the supersonic jets which are operated in a wide range of over-expanded to moderately under- expanded jets. In order to perturb mainly the initial jet shear layer, the hole is perforated in the central part of the mesh screen. The hole size is varied to investigate the noise control effectiveness of the mesh screen. A schlieren optical system is used to visualize the flow fields of supersonic jet with and without the mesh screen device. Acoustic measurement is performed to obtain the OASPL and noise spectra. The results obtained show that the present mesh screen device leads to a substantial suppression of jet screen tones. The hole size is an important factor in reducing the supersonic jet noise. For over-expanded jets, the noise control effectiveness of the mesh screen appears more significant, compared to correctly- And under-expanded jets.

元の言語英語
ホスト出版物のタイトル13th International Congress on Sound and Vibration 2006, ICSV 2006
出版者International Institute of Acoustics and Vibrations
ページ233-240
ページ数8
ISBN(印刷物)9781627481502
出版物ステータス出版済み - 1 1 2006
イベント13th International Congress on Sound and Vibration 2006, ICSV 2006 - Vienna, オーストリア
継続期間: 7 2 20067 6 2006

出版物シリーズ

名前13th International Congress on Sound and Vibration 2006, ICSV 2006
1

その他

その他13th International Congress on Sound and Vibration 2006, ICSV 2006
オーストリア
Vienna
期間7/2/067/6/06

Fingerprint

jet aircraft noise
mesh
nozzles
gauze
wire
pressure ratio
acoustic measurement
shear layers
noise spectra
flow distribution
retarding

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

これを引用

Kweon, Y. H., Lim, C. M., Miyazato, Y., Aoki, T., Kim, H. D., & Setoguchi, T. (2006). Control of supersonic jet noise using a mesh screen. : 13th International Congress on Sound and Vibration 2006, ICSV 2006 (pp. 233-240). (13th International Congress on Sound and Vibration 2006, ICSV 2006; 巻数 1). International Institute of Acoustics and Vibrations.

Control of supersonic jet noise using a mesh screen. / Kweon, Y. H.; Lim, C. M.; Miyazato, Y.; Aoki, Toshiyuki; Kim, H. D.; Setoguchi, T.

13th International Congress on Sound and Vibration 2006, ICSV 2006. International Institute of Acoustics and Vibrations, 2006. p. 233-240 (13th International Congress on Sound and Vibration 2006, ICSV 2006; 巻 1).

研究成果: 著書/レポートタイプへの貢献会議での発言

Kweon, YH, Lim, CM, Miyazato, Y, Aoki, T, Kim, HD & Setoguchi, T 2006, Control of supersonic jet noise using a mesh screen. : 13th International Congress on Sound and Vibration 2006, ICSV 2006. 13th International Congress on Sound and Vibration 2006, ICSV 2006, 巻. 1, International Institute of Acoustics and Vibrations, pp. 233-240, 13th International Congress on Sound and Vibration 2006, ICSV 2006, Vienna, オーストリア, 7/2/06.
Kweon YH, Lim CM, Miyazato Y, Aoki T, Kim HD, Setoguchi T. Control of supersonic jet noise using a mesh screen. : 13th International Congress on Sound and Vibration 2006, ICSV 2006. International Institute of Acoustics and Vibrations. 2006. p. 233-240. (13th International Congress on Sound and Vibration 2006, ICSV 2006).
Kweon, Y. H. ; Lim, C. M. ; Miyazato, Y. ; Aoki, Toshiyuki ; Kim, H. D. ; Setoguchi, T. / Control of supersonic jet noise using a mesh screen. 13th International Congress on Sound and Vibration 2006, ICSV 2006. International Institute of Acoustics and Vibrations, 2006. pp. 233-240 (13th International Congress on Sound and Vibration 2006, ICSV 2006).
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