A Numerical Analysis Research on Earlier Behavior of Molten Droplet Covered with Vapor Film at the Stage of Triggering and Propagation in Steam Explosion
Joint Authors
Zhong, Mingjun
Li, Yankai
Lin, Meng
Yuan, Minghao
Yang, Yanhua
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-09
Country of Publication
Egypt
No. of Pages
10
Abstract EN
When the molten fuel with high temperature falls into the cavity water, it will be dispersed into droplets which are covered with vapor films due to the rapid heat transfer with phase transition.
This situation cannot be simply described by liquid-liquid or gas-liquid systems.
And there are no sufficient experimental studies on the behavior of droplet covered with vapor film because of the rapid reaction and the difficulty in capture of the film configuration.
In this paper, a multiphase code with the volume of fluid (VOF) method is used to simulate the earlier behavior of droplet when vapor film exits.
The earlier behavior is defined as behavior of the droplet before its disintegration.
Thermal effect and pure hydrodynamic effect are, respectively, considered.
The simulation results indicate that the film thickness and material density have significant effect on the earlier behavior of droplet.
The situation assumed in Ciccarelli and Frost’s model (1994) is observed in current simulation of earlier thermal droplet behavior.
The effect of triggering pressure pulse on earlier hydrodynamic behavior is also discussed and it indicates that vapor film has little effect on the hydrodynamic droplet deformation when the intensity of the pressure pulse is very high.
American Psychological Association (APA)
Zhong, Mingjun& Li, Yankai& Lin, Meng& Yuan, Minghao& Yang, Yanhua. 2014. A Numerical Analysis Research on Earlier Behavior of Molten Droplet Covered with Vapor Film at the Stage of Triggering and Propagation in Steam Explosion. Science and Technology of Nuclear Installations،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1047748
Modern Language Association (MLA)
Zhong, Mingjun…[et al.]. A Numerical Analysis Research on Earlier Behavior of Molten Droplet Covered with Vapor Film at the Stage of Triggering and Propagation in Steam Explosion. Science and Technology of Nuclear Installations No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1047748
American Medical Association (AMA)
Zhong, Mingjun& Li, Yankai& Lin, Meng& Yuan, Minghao& Yang, Yanhua. A Numerical Analysis Research on Earlier Behavior of Molten Droplet Covered with Vapor Film at the Stage of Triggering and Propagation in Steam Explosion. Science and Technology of Nuclear Installations. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1047748
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047748