レーザ蛍光法による高速気流中のじょう乱伝ぱ測定　　超音速キャビティ流れへの適用

• 井上 雅弘

• 村石 隆

• 梶山 修作

• 古川 雅人

• 益田 光治

書誌事項

タイトル別名

• A Measurement of Disturbance Propagation in High-Speed Flow by a Laser Induced Fluorescence Method(Application to a Supersonic Cavity Flow).
• レーザ ケイコウホウ ニ ヨル コウソク キリュウ チュウ ノ ジョウランデンパソクテイ チョウオンソク キャビティ ナガレ エ ノ テキヨウ

抄録

A method for measuring propagation of disturbance in a high-speed flow has been developed by using a laser induced fluorescence (LIF) technique. A cross correlation function between the time-dependent LIF signal and a pressure sensor signal at a reference point enables to measure a propagation speed of disturbance. Through a bandpass filter, the speed of disturbance with a particular frequency can he obtained. A feature of disturbance propagation can be grasped by drawing maps for the cross-correlation coefficients on a space at successive delay-times and making an animation. The method was applied to a supersonic flow over a rectangular cavity with length to depth ratio of 2, to elucidate feedback mechanisms of self sustaining flow oscillation with several dominant frequencies.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 65 (631), 948-954, 1999

  一般社団法人 日本機械学会

キーワード

• Propatgation of Disturbance

詳細情報

• CRID: 1390001205895058688
• NII論文ID: 110002395306
• NII論文ID: 130004223445
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.65.948
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 4696004
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4696004
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/65/631/65_631_948/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可