Frequency-response characteristics of interaction tone noise radiated from a centrifugal compressor

Yutaka Ohta*, Shunsuke Masui, Toshiya Fuyumuro, Eisuke Outa

*この研究の対応する著者

研究成果: Conference contribution

抄録

Frequency-response characteristics of interaction tone noise radiated from a centrifugal compressor with vaned diffuser are discussed by experiments and also by noise transmission model. The interaction tone noise is supposed to be caused by the periodic pressure fluctuation in the vicinity of the leading edge of diffuser vanes, and to show the characteristics of dipole noise source, noise source characteristics in an ideal sense should increase in the 6th power against the flow velocity. Then the level discrepancy between the noise source and measured sound pressure level is considered to be affected simply by the frequency-response characteristics of the noise transmission passage which are predicted by introducing a one-dimensional linear wave model. In the model, leading edge of the diffuser vane is considered to be a noise source, and sound wave travels through the passages of main and splitter blades in the impeller, inducer and inlet duct as a plane wave. The modeled data is found satisfactorily to predict the response characteristics of the noise transmission passage. The noise source characteristics are also discussed by precise measurements of pressure fluctuation level within impeller passages.

本文言語English
ホスト出版物のタイトルProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
ホスト出版物のサブタイトルVolume 1, Part A, Forums
編集者A. Ogut, Y. Tsuji, M. Kawahashi
出版社American Society of Mechanical Engineers
ページ557-562
ページ数6
ISBN(印刷版)0791836967, 9780791836965
DOI
出版ステータスPublished - 2003 1 1
イベント4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
継続期間: 2003 7 62003 7 10

出版物シリーズ

名前Proceedings of the ASME/JSME Joint Fluids Engineering Conference
1 A

Conference

Conference4th ASME/JSME Joint Fluids Engineering Conference
国/地域United States
CityHonolulu, HI
Period03/7/603/7/10

ASJC Scopus subject areas

  • 機械工学
  • 流体および伝熱

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