Laser-sheet flow visualization on the wake behind a confined ring

J. J. Miau, E. G. Chiu, J. H. Chou

Research output: Book/ReportBook


Flow over a ring model situated axisymmetrically in a circular pipe has been studied by laser-sheet flow visualization technique. Over 25 cases of rings in different sizes were investigated and flow characteristics observed are summarized into six regimes, in reference to two geometrical parameters of G/W and D/W. Here, W is the width of the ring, D is the mean diameter of the ring, and G is the gap width between the pipe wall and the outer edge of the ring. It is interesting to point out that vortex-shedding structures produced by a ring model can exist a considerable distance downstream in three of the six regimes, which correspond to different physical processes of shedding. (A)

Original languageEnglish
PublisherNew York, USA, ASME; Fluid engineering division; FED vol. 128
ISBN (Print)0791808742, 9780791808740
Publication statusPublished - 1991

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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