The axial development of the void fraction profile, interfacial area concentration and Sauter mean bubble diameter of adiabatic nitrogen-water bubbly flows in a 9 mm-diameter pipe were measured using stereo image processing in normal and microgravity conditions. The effect of gravity and flow conditions on the radial distribution of bubbles and the axial development of the two-phase flow parameter is discussed in detail based on the obtained data. By taking into account normalized parameters based on void peak fraction and void peak intensity in the pipe cross-section, the phase distribution patterns were classified into three types: a wall peak, a core peak and an intermediate peak. Phase distribution pattern maps are presented for vertical upward bubbly flows in normal and microgravity conditions.
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17th International Conference on Nuclear Engineering
July 12–16, 2009
Brussels, Belgium
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4354-3
PROCEEDINGS PAPER
Effect of Gravity on Axial Development of Phase Distribution Patterns in Bubbly Two-Phase Flow Available to Purchase
Takashi Nishioji,
Takashi Nishioji
Tokyo University of Marine Science and Technology, Tokyo, Japan
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Taichi Kato,
Taichi Kato
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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Takashi Nishioji
Tokyo University of Marine Science and Technology, Tokyo, Japan
Taichi Kato
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:
ICONE17-75232, pp. 371-380; 10 pages
Published Online:
February 25, 2010
Citation
Nishioji, T, Kato, T, Fukuhara, Y, Hazuku, T, Takamasa, T, & Hibiki, T. "Effect of Gravity on Axial Development of Phase Distribution Patterns in Bubbly Two-Phase Flow." Proceedings of the 17th International Conference on Nuclear Engineering. Volume 4: Codes, Standards, Licensing and Regulatory Issues; Student Paper Competition. Brussels, Belgium. July 12–16, 2009. pp. 371-380. ASME. https://doi.org/10.1115/ICONE17-75232
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