Measurements of local void fraction, rise velocity and bubble diameter have been obtained for cocurrent, wall-heated, upward bubbly flows in a pressurized refrigerant. The instrumentation used was the gamma densitometer and the hot-film anemometer. Departure bubble size and bulk size measurements were also made and correlated with appropriate parameters. Flow visualization techniques have also been used to understand the two-phase flow structure and the behavior of the bubbly flow for different bubble shapes and sizes, and to obtain the rise velocity. Such insight, coupled with quantitative local and averaged data on void fraction and bubble size at different pressures, has aided in developing bubbly flow models applicable to heated two-phase flows at high pressure.
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ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3696-7
PROCEEDINGS PAPER
Experiments and Modeling in Bubbly Flows at Elevated Pressures Available to Purchase
R. Kumar,
R. Kumar
University of Central Florida, Orlando, FL
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T. A. Trabold,
T. A. Trabold
Lockheed Martin Corporation, Schenectady, NY
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C. C. Maneri
C. C. Maneri
Lockheed Martin Corporation, Schenectady, NY
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R. Kumar
University of Central Florida, Orlando, FL
T. A. Trabold
Lockheed Martin Corporation, Schenectady, NY
C. C. Maneri
Lockheed Martin Corporation, Schenectady, NY
Paper No:
FEDSM2003-45793, pp. 1829-1839; 11 pages
Published Online:
February 4, 2009
Citation
Kumar, R, Trabold, TA, & Maneri, CC. "Experiments and Modeling in Bubbly Flows at Elevated Pressures." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 1: Fora, Parts A, B, C, and D. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 1829-1839. ASME. https://doi.org/10.1115/FEDSM2003-45793
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