MISC

1998年

円形噴流・直管系での自励振動および共鳴に対する金網の影響(共著)

日本機械学会論文集
  • 倉澤 英夫
  • ,
  • 小幡 輝夫
  • ,
  • 羽田 喜昭
  • ,
  • 笠木 伸英
  • ,
  • 松内 一雄

64
619
開始ページ
760
終了ページ
766
記述言語
日本語
掲載種別
DOI
10.1299/kikaib.64.760
出版者・発行元
一般社団法人日本機械学会

The self-sustained oscillation is known to be excited by an axisymmetric jet impinging upon the sharp-leading edge of a ring. When a finite length of pipe, instead of a ring, is placed in a straight line with the jet axis, longitudinal resonant modes of the pipe are produced under a certain flow and geometerical conditions. In this paper, the influence of the inserted screen on the self-sustained oscillation and resonance of the pipe column oscillation are studied when a screen is placed between the nozzle exit and the ring or the pipe. Two patterns of the feedback loop are formed by the interaction between the vortical structure in the shear layer and the screen, or by the interaction between the former and the ring or the pipe. In the case of the pipe there are three frequency modes, namely oscillations in the two feedback loops and a resonant mode of the pipe. The resonance of the pipe is excited or suppressed according to the relationship among the three modes. When the screen is placed near the nozzle exit, the screen prevents the self-sustained oscillation and the resonance of the pipe dose not appear.

リンク情報
DOI
https://doi.org/10.1299/kikaib.64.760
CiNii Articles
http://ci.nii.ac.jp/naid/110002396854
CiNii Books
http://ci.nii.ac.jp/ncid/AN00187441
URL
http://id.ndl.go.jp/bib/4435282
ID情報
  • DOI : 10.1299/kikaib.64.760
  • ISSN : 0387-5016
  • ISSN : 1884-8346
  • CiNii Articles ID : 110002396854
  • CiNii Books ID : AN00187441

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