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Observation of Low Bond Number Two-Phase Flow Regime Transition From Slug to Annular Wavy Flow in a Microchannel

[+] Author Affiliations
Jeffrey S. Allen, Sang Young Son

NASA Glenn Research Center, Cleveland, OH

Paper No. ICMM2003-1057, pp. 473-477; 5 pages
doi:10.1115/ICMM2003-1057
From:
  • ASME 2003 1st International Conference on Microchannels and Minichannels
  • 1st International Conference on Microchannels and Minichannels
  • Rochester, New York, USA, April 24–25, 2003
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-3667-3
  • Copyright © 2003 by ASME

abstract

An understanding the physics behind the flow transition when capillary forces are important is critical to the development of many technologies; both for terrestrial- and space-based applications. The flow transition of greatest concern is that between slug, or plug, flow and core-annular flow. The transition of plug flow to core-annular flow in a low-Bond number configuration is experimentally observed in a novel capillary configuration. The effect of variations in mass flow rate of each phase (gas and liquid) on the overall system dynamics is discussed for both flow regimes.

Copyright © 2003 by ASME

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