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Study on the acoustic resonators of slanted perforation with grazing flow

  • Beihang University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Previous studies have shown that flow has a great influence on the acoustic impedance of liner. Those studies are largely based on sharp edged perforations with an axis normal to the wall. But for slanted-perforation resonator, which has an axis at different angles with respect to the direction of the grazing flow, has not receive much attention in the literature. Therefore, the influence of flows on the acoustic response of the slanted-perforation resonator is a problem of interest. This paper will solve the linearized Navier Stokes equations to analyze this problem. Besides, in order to investigate the influence of the opening direction on the acoustic characteristics of the system, two kinds of slit openings are presented in this paper. It is clearly show that the grazing flow has a significant impact on the impedance of such a slanted-perforation resonator.

源语言英语
主期刊名25th International Congress on Sound and Vibration 2018, ICSV 2018
主期刊副标题Hiroshima Calling
出版商International Institute of Acoustics and Vibration, IIAV
1272-1279
页数8
ISBN(电子版)9781510868458
出版状态已出版 - 2018
活动25th International Congress on Sound and Vibration 2018: Hiroshima Calling, ICSV 2018 - Hiroshima, 日本
期限: 8 7月 201812 7月 2018

出版系列

姓名25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling
3

会议

会议25th International Congress on Sound and Vibration 2018: Hiroshima Calling, ICSV 2018
国家/地区日本
Hiroshima
时期8/07/1812/07/18

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