2円柱を横切る流れの不安定性と遷移

• 稲生, 洋一

• 水島, 二郎

• Ino, Yoichi

• Mizushima, Jiro

書誌事項

タイトル別名

• Transition and instability of flow past a pair of circular cylinders

抄録

The instability and transition of flow past two circular cylinders arranged perpendicularly to the stream are investigated numerically. It is a steady symmetric flow that is realized at small Reynolds numbers, but the flow becomes unstable above a critical Reynolds numbers. It has been believed that the resultant flow due to the instability is always oscillatory. However, we found a steady asymmetric flow as well as the oscillatory flow arising from the instability in a region of the gap width between the two cylinders. We evaluated the critical Reynolds number and clarified the region of the gap width in which the steady asymmetric flow is realized.

資料番号: AA0063156019

レポート番号: JAXA-SP-06-013

収録刊行物

• 宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集　第37回・第38回 = JAXA Special Publication: Proceedings of the 37th and 38th JAXA Workshops on Investigation and Control of Boundary-Layer Transition

  宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集　第37回・第38回 = JAXA Special Publication: Proceedings of the 37th and 38th JAXA Workshops on Investigation and Control of Boundary-Layer Transition JAXA-SP-06-013 65-68, 2007-02-23

  宇宙航空研究開発機構

キーワード

• 円形シリンダ
• 一様流
• 流れの安定性
• 流れの分布
• 後流
• 数値的流れの可視化
• 渦度方程式
• レイノルズ数
• 安定性解析
• ホップ分岐
• ピッチフォーク分岐
• 定常非対称流
• 振動流
• circular cylinder
• uniform flow
• flow stability
• flow distribution
• wake
• numerical flow visualization
• vorticity equation
• Reynolds number
• stability analysis
• Hopf bifurcation
• Pitchfork bifurcation
• steady asymmetric flow
• oscillatory flow

詳細情報

• CRID: 1050011086271376128
• NII論文ID: 120006829343
• NII書誌ID: AA11984031
• ISSN: 1349113X
• Web Site: http://id.nii.ac.jp/1696/00005932/
• 本文言語コード: ja
• 資料種別: conference paper
• データソース種別:
  • IRDB
  • CiNii Articles