Characteristics of nonlinear effects on the propagating compression wave in a tunnel

Tomo Orita, Toshiyuki Aoki, Shinsuke Ishii, Daisuke Sasa

研究成果: 著書/レポートタイプへの貢献会議での発言

抜粋

A compression wave is generated ahead of a high-speed train, while entering a tunnel. This compression wave propagates to the tunnel exit and spouts out as a micro pressure wave, causing an exploding sound. In order to estimate the magnitude correctly, the mechanism of the attenuation and distortion of a compression wave propagating along a tunnel must be understood and experimental information on these phenomena is required. An experimental and numerical investigation is carried out to clarify the nonlinear effect of the propagating compression wave in a tube. The attenuation and distortion of compression wavefront are affected by nonlinear effects on the propagating compression wave in a tunnel. It is confirmed that a head of wavefront and an overshoot on pressure distribution is observed behind a compression wave due to the transition of the unsteady boundary layer.

元の言語英語
ホスト出版物のタイトル40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
ページ1016-1021
ページ数6
2
出版物ステータス出版済み - 2011
イベント40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011 - Osaka, 日本
継続期間: 9 4 20119 7 2011

その他

その他40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
日本
Osaka
期間9/4/119/7/11

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

これを引用

Orita, T., Aoki, T., Ishii, S., & Sasa, D. (2011). Characteristics of nonlinear effects on the propagating compression wave in a tunnel. : 40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011 (巻 2, pp. 1016-1021)