回転する単独ＮＡＣＡ６５翼から発生する騒音のスペクトル密度分布の予測

• 深野 徹

• 猿渡 博孝

• 北村 知生

• 濱川 洋充

書誌事項

タイトル別名

• Prediction of Spectral Distribution of Noise Generated from a Rotating NACA 65 Blade.
• カイテンスル タンドク NACA65ヨク カラ ハッセイスル ソウオン ノ ス

抄録

We have experimentally studied the relationship between the periodic velocity fluctuation in the near wake of a rotating NACA 65 Blade and the generated broad band noise at different setting angles of the blade. The typical periodic velocity fluctuation in the near wake was not clearly observed at a design point but was observed at the attack angle at off design points. The frequency of the produced velocity fluctuation caused by Karman vortex shedding from the trailing edge of the blade increased toward the tip of the blade. Then, the spectrum of noise generated from the blade becomes broad band. In addition, we have proposed a method to predict the spectrum of noisc generated from blades due to Karman vortex shedding. The validity of the method was experimentally verified.

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 63 (610), 2047-2054, 1997

  一般社団法人 日本機械学会

キーワード

• Broad Band Noise

詳細情報

• CRID: 1390001205895492864
• NII論文ID: 110002396425
• NII論文ID: 130004222610
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.63.2047
• ISSN: 18848346
• ISSN: 03875016
• HANDLE: 10559/14013
• NDL書誌ID: 4236651
• Web Site: https://our.repo.nii.ac.jp/records/2008293
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4236651
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/63/610/63_610_2047/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可