巻号一覧
22 巻 (2008)
- 4 号 p. 374-
- 3 号 p. 273-
- 2 号 p. 154-
- 1 号 p. 50-
前身誌
22 巻, 3 号
選択された号の論文の1件中1～1を表示しています
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論文
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塩見 洋一, 野口 佳樹, 南川 久人, 田中 康恵2008 年 22 巻 3 号 p. 273-279
発行日: 2008/09/15
公開日: 2009/10/08
ジャーナル フリーThe Particle Image Velocimetry(PIV) method was applied to obtain the velocity profile around a large bubble in stagnant water in a vertical pipe of inner diameter D=26.5 mm, especially, in thin liquid film by magnifying the image and wake region. The results obtained PIV were confirmed following characteristics of the velocity profile of large bubble. The velocity profile was unaffected by an initial bubble length. With approaching rear of the large bubble, the axial velocity increases in the liquid film. Maximum velocities in the liquid film well agreed with those of the free falling model. In the wake region, the symmetric and asymmetric vortex were observed and their transition were related with the bubble length. The wake length decreases with the increase of the bubble length.抄録全体を表示PDF形式でダウンロード (1459K)
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