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Numerical Study of Bubble Rising and Coalescence Characteristics under Flow Pulsation Based on Particle Method
Joint Authors
Su, Guanghui
Tian, Wenxi
Chen, Ronghua
Zhang, Minghao
Guo, Kailun
Zhao, Dawei
Qiu, Suizheng
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-01
Country of Publication
Egypt
No. of Pages
13
Abstract EN
Two-phase flow instability may occur in nuclear reactor systems, which is often accompanied by periodic fluctuation in fluid flow rate.
In this study, bubble rising and coalescence characteristics under inlet flow pulsation condition are analyzed based on the MPS-MAFL method.
To begin with, the single bubble rising behavior under flow pulsation condition was simulated.
The simulation results show that the bubble shape and rising velocity fluctuate periodically as same as the inlet flow rate.
Additionally, the bubble pairs’ coalescence behavior under flow pulsation condition was simulated and compared with static condition results.
It is found that the coalescence time of bubble pairs slightly increased under the pulsation condition, and then the bubbles will continue to pulsate with almost the same period as the inlet flow rate after coalescence.
In view of these facts, this study could offer theory support and method basis to a better understanding of the two-phase flow configuration under flow pulsation condition.
American Psychological Association (APA)
Chen, Ronghua& Zhang, Minghao& Guo, Kailun& Zhao, Dawei& Tian, Wenxi& Su, Guanghui…[et al.]. 2019. Numerical Study of Bubble Rising and Coalescence Characteristics under Flow Pulsation Based on Particle Method. Science and Technology of Nuclear Installations،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1210814
Modern Language Association (MLA)
Chen, Ronghua…[et al.]. Numerical Study of Bubble Rising and Coalescence Characteristics under Flow Pulsation Based on Particle Method. Science and Technology of Nuclear Installations No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1210814
American Medical Association (AMA)
Chen, Ronghua& Zhang, Minghao& Guo, Kailun& Zhao, Dawei& Tian, Wenxi& Su, Guanghui…[et al.]. Numerical Study of Bubble Rising and Coalescence Characteristics under Flow Pulsation Based on Particle Method. Science and Technology of Nuclear Installations. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1210814
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210814