書誌事項
- タイトル別名
-
- Rising Bubble Three-Dimensional Deformation and Flow Structure in a Linear Shear Flow : Relation between Asymmetry of Bubble's Shape and Shedding Vortex
抄録
The dynamics of a single, rising air bubble in a linear shear flow was investigated by high speed and high spatial resolution CCD cameras in a vertical water channel. The present study focused on the influence of forces acting on the bubble and its lateral motion induced by the surrounding flow field. The flow structure in the vicinity of the bubble of 2 to 6mm in diameter was obtained by a PIV/LIF technique, and deformation of the bubble's interface was measured by a shadow imaging technique. It is found that the bubble trajectory was mainly affected by the three-dimensional vortex shedding in the wake. Experimental data of the averaged vorticity at the edge of bubble, the bubble aspect ratio and the curvature of bubble edge showed that the magnitude of vorticity correlates with the bubble shape.
収録刊行物
-
- 熱工学コンファレンス講演論文集
-
熱工学コンファレンス講演論文集 2003 (0), 73-74, 2003
一般社団法人 日本機械学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001205880675200
-
- NII論文ID
- 110002489456
-
- ISSN
- 2424290X
-
- 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