0205 気泡プルームによるダムの温度成層破壊における流動メカニズムの可視化

• 村井 祐一

  北大

• 北浦 秀和

  北大

• 田坂 裕司

  北大

• 城野 清治

  海洋開発技研

書誌事項

タイトル別名

• 0205 Flow mechanism visualization of thermal destratification in a dam by a bubble plume

抄録

Based on experimental findings in laboratory scale about the density destratification process by a bubble plume, a set of numerical simulations have been carried out. Eulerian-Lagrangian bubbly flow model equations are applied for the bubble plume to numerically replay the process in 2D and 3D geometries. Enhancement of the destratification by repetitive bubble injection (RBI) has been confirmed in 2D simulation, which is realized by wavy transport of density currents along horizontal density interfaces. The same effect in a real 3D geometry of a dam lake has been partly observed. However, complexity of the flow domain makes it obscure, implying farther study required to intensity the function of the RBI-based destratification.

収録刊行物

• 流体工学部門講演会講演論文集

  流体工学部門講演会講演論文集 2014 (0), _0205-1_-_0205-2_, 2014

  一般社団法人 日本機械学会

キーワード

• Bubble plume
• density stratification
• turbulent mixing
• flow visualization
• numerical simulation

詳細情報

• CRID: 1390282680861386496
• NII論文ID: 110009938594
• DOI: 10.1299/jsmefed.2014._0205-1_
• ISSN: 24242896
• Web Site: https://www.jstage.jst.go.jp/article/jsmefed/2014/0/2014__0205-1_/_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