回転乱流場におけるバースト過程の条件付き平均と確率モデル

• 植木 良昇

• 辻 義之

• 中村 育雄

書誌事項

タイトル別名

• A Conditional Sampling and a Stochastic Model of Bursting Process in a Rotating Turbulent Boundary Layer.
• カイテン ランリュウバ ニ オケル バースト カテイ ノ ジョウケン ツキ ヘイキン ト カクリツ モデル

抄録

Coherent structures or large scale motions in a turbulent boundary layer on a rotating cylinder in a quiescent fluid are considered by various conditional sampling procedures. As it is clear from previous investigations that the coherent structures are depending on the conditional technique of sampling, here we discuss some dynamical aspects of them. Several conditional sampling procedures are adopted here, and also the variable interval time average (VITA) technique is modified with a reasonable assumption. Turbulent velocity signal and a random process generated by a Langevin equation are analyzed by these techniques. With comparing these results, we found that statistial properties of the coherent structure are well modeled by the Langevin equation as far as the conditional sampling is assigned.

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 67 (654), 404-411, 2001

  一般社団法人 日本機械学会

キーワード

• Stochastic Model

詳細情報

• CRID: 1390001206184132352
• NII論文ID: 110002397487
• NII論文ID: 130004224111
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.67.404
• ISSN: 18848346
• ISSN: 03875016
• HANDLE: 2237/9105
• NDL書誌ID: 5681226
• Web Site: https://nagoya.repo.nii.ac.jp/records/7423
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5681226
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/67/654/67_654_404/_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