In relation to the development of the interfacial area transport equation, a precise database of the axial development of void fraction profile, interfacial area concentration and Sauter mean bubble diameter in an adiabatic nitrogen-water bubbly flow in a 5 mm-diameter mini pipe was constructed for normal and microgravity conditions using stereo image-processing. The flow measurements were performed at four axial locations (axial distance from the inlet normalized by the pipe diameter, z/D = 5.5, 34, 72 and 110) and with various flows: superficial gas velocity of 0.00434–0.0420 m/s, and superficial liquid velocity of 0.239–0.949 m/s. The effect of gravity on radial distribution of bubbles and the axial development of two-phase flow parameters is discussed in detail based on the obtained database and visual observation.
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18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4930-9
PROCEEDINGS PAPER
Effect of Gravity on Phase Distribution Patterns of Bubbly Two-Phase Flow in a Vertical Mini Pipe
Shunichi Watanabe
,
Shunichi Watanabe
Tokyo University of Marine Science and Technology, Tokyo, Japan
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Yutaka Fukuhara
,
Yutaka Fukuhara
Tokyo University of Marine Science and Technology, Tokyo, Japan
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Tatsuya Hazuku
,
Tatsuya Hazuku
Tokyo University of Marine Science and Technology, Tokyo, Japan
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Tomoji Takamasa
,
Tomoji Takamasa
Tokyo University of Marine Science and Technology, Tokyo, Japan
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Takashi Hibiki
Takashi Hibiki
Purdue University, West Lafayette, IN
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Shunichi Watanabe
Tokyo University of Marine Science and Technology, Tokyo, Japan
Yutaka Fukuhara
Tokyo University of Marine Science and Technology, Tokyo, Japan
Tatsuya Hazuku
Tokyo University of Marine Science and Technology, Tokyo, Japan
Tomoji Takamasa
Tokyo University of Marine Science and Technology, Tokyo, Japan
Takashi Hibiki
Purdue University, West Lafayette, IN
Paper No:
ICONE18-29636, pp. 657-664; 8 pages
Published Online:
April 8, 2011
Citation
Watanabe, S, Fukuhara, Y, Hazuku, T, Takamasa, T, & Hibiki, T. "Effect of Gravity on Phase Distribution Patterns of Bubbly Two-Phase Flow in a Vertical Mini Pipe." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 2. Xi’an, China. May 17–21, 2010. pp. 657-664. ASME. https://doi.org/10.1115/ICONE18-29636
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