317 加速による乱流逆遷移の数値シミュレーション(OS-7 乱流・音)

• 太田 貴士

  阪大工

• 三宅 裕

  阪大工

• 梶島 岳夫

  阪大工

書誌事項

タイトル別名

• 317 DNS of reverting turbulent flow subjected to acceleration

抄録

We investigated the reverse transition of highly accelerated turbulent flow by means of the direct numerical simulation. The characteristic properties and its variation of the velocity profile qualitatively coincide with the tendency of the results obtained by the previous experimental studies. The turbulence intensities are reduced drastically because of the termination of the energy production in the accelerated section. After that, the gradient of the flow profile close to the wall, due to the acceleration of the mean velocity, becomes so large that streaks resume the growing, though the streamwise vorticity remain feeble.

収録刊行物

• 関西支部講演会講演論文集

  関西支部講演会講演論文集 2000.75 (0), _3-43_-_3-44_, 2000

  一般社団法人 日本機械学会

キーワード

• Turbulent Flow
• Reverse transition
• Relaminarization
• Direct Numerical Simulation

詳細情報

• CRID: 1390001205848110080
• NII論文ID: 110002491471
• DOI: 10.1299/jsmekansai.2000.75._3-43_
• ISSN: 24242756
• Web Site: https://www.jstage.jst.go.jp/article/jsmekansai/2000.75/0/2000.75__3-43_/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可