可視化情報学会誌
Online ISSN : 1884-037X
Print ISSN : 0916-4731
ISSN-L : 0916-4731
10 低レイノルズ数の円柱後流の双子渦の振動形成
能登 勝久瀬畑 昌央中島 健
著者情報
ジャーナル フリー

1994 年 14 巻 Supplement1 号 p. 47-50

詳細
抄録

This study eluidates the onset of wake oscillation and the generation process of the oscillating bubble behind a circular cylinder by visualizing computed results obtained by solving numerically the two-dimensional, time-dependent Navi-er-Stokes equations at the low Reynolds numbers. The zero-streamline begins to oscillate near the rear stagnant point at Re=1-4. A bubble composed of two standing vortices adhered to the cylinder certainly begins to oscillate at Re=5.60-5.6 2. Instability generated by motion of the zero-streamline and the bubble is not transported into the downstream and is the absolute instability, since the flow outside the neighborhood of the rear stagnnant point is completely steady and symmetric at Re≤16.

著者関連情報
© 社団法人 可視化情報学会
前の記事 次の記事
feedback
Top