EFFECT OF GRAVITY ON PHASE DISTRIBUTION PATTERNS OF BUBBLY TWO-PHASE FLOW IN A VERTICAL MINI PIPE
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.
Shunichi Watanabe Yutaka Fukuhara Tatsuya Hazuku Tomoji Takamasa Takashi Hibiki
Faculty of Marine Technology, Tokyo University of Marine Science and Technology Koto, Tokyo 135-8533 School of Nuclear Engineering, Purdue University West Lafayette, IN 47907-2017, USA
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-8
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）