Structure of air-water bubbly flow in a vertical pipe—I. liquid mean velocity and turbulence measurements
✍ Scribed by T.J. Liu; S.G. Bankoff
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 669 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0017-9310
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✦ Synopsis
The liquid-phase turbulent structtLre of an air water, bubbly upflow in a circular pipe has been investigated experimentally. Liquid-phase local velocities lind turbulent stresses were simultaneously measured, using both one-and two-dimensional hot-film anemometer probes. A highly-accurate digital process method, based on threshold combinations of level and slope, was developed to identify the phases Systematic measurements were conducted under 4~ llow conditions covering a range of local void fraction from 0 to 50%. The important experimental results and parametric trends are summarized and discussed.
Finally. Hie present data are compared with some other data sources and existing models.