Experimental study on vertically upward steam-water two-phase flow patterns in narrow rectangular channel

Jiancheng Zhou; Tianzhou Ye; Dalin Zhang; Gongle Song; Rulei Sun; Jian Deng; Wenxi Tian; G.H. Su; Suizheng Qiu

Nuclear Engineering and Technology (Jan 2021)

Experimental study on vertically upward steam-water two-phase flow patterns in narrow rectangular channel

Jiancheng Zhou,
Tianzhou Ye,
Dalin Zhang,
Gongle Song,
Rulei Sun,
Jian Deng,
Wenxi Tian,
G.H. Su,
Suizheng Qiu

Affiliations

Jiancheng Zhou: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
Tianzhou Ye: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
Dalin Zhang: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Corresponding author.
Gongle Song: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
Rulei Sun: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
Jian Deng: Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, China; Corresponding author.
Wenxi Tian: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
G.H. Su: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
Suizheng Qiu: State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China

Journal volume & issue: Vol. 53, no. 1
pp. 61 – 68

Abstract

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Experiments of vertically upward steam-water two-phase flow have been carried out in single-side heated narrow rectangular channel with a gap of 3 mm. Flow patterns were identified and classified through visualization directly. Slug flow was only observed at 0.2 MPa but replaced by block-bubble flow at 1.0 MPa. Flow pattern maps at the pressure of 0.2 MPa and 1.0 MPa were plotted and the difference was analyzed. The experimental data has been compared with other flow pattern maps and transition criteria. The results show reasonable agreement with Hosler's, while a wide discrepancy is observed when compared with air-water two-phase experimental data. Current criteria developed based on air-water experiments poorly predict bubble-slug flow transition due to the different formation and growth of bubbles. This work is significant for researches on heat transfer, bubble dynamics and flow instability.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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