Numerical computation of thermally controlled steam bubble condensation using Moving Particle Semi-implicit (MPS) method

被引:68
|
作者
Tian, Wenxi [1 ,2 ]
Ishiwatari, Yuki [2 ]
Ikejiri, Satoshi [2 ]
Yamakawa, Masanori [2 ]
Oka, Yoshiaki [2 ]
机构
[1] Xi An Jiao Tong Univ, Dept Nucl Sci & Technol, Xian 710049, Shaanxi, Peoples R China
[2] Univ Tokyo, Dept Nucl Engn & Management, Tokyo 1138586, Japan
关键词
DIRECT-CONTACT CONDENSATION; FREE-BOUNDARY PROBLEMS; HEAT-TRANSFER; FLUID-MECHANICS; SIMULATION; MOTION; GROWTH; SHAPES; PHASE; WATER;
D O I
10.1016/j.anucene.2009.10.011
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
In the present study, single steam bubble condensation behaviors in subcooled water have been simulated using Moving Particle Semi-implicit (MPS) method. The liquid phase was modeled using moving particles and the two phase interface was set to be a movable boundary which can be tracked by the topological position of the interfacial particles. The interfacial heat transfer was determined according to the heat conduction through the interfacial liquid layer and the coupling between momentum and energy was specially treated. Computational results showed that the bubble experiences various deformations at lower degrees of liquid subcooling while it remains nearly spherical at higher degrees of liquid subcooling. The bubble lifetime is nearly proportional to bubble size and is prolonged at higher system pressures. Bubble lifetime obtained from the MPS method agrees well with the experiments of Kamei and Hirata (1986, 1987), however it is lower than the predictions of Sudhoff et al. (1982). The underestimation is caused by severe bubble deformation at lower degrees of subcooling. The present study exhibits some fundamental characteristics of single steam bubble condensation and is expected to be instructive for further applications of the MPS method to evaluate more complicated bubble dynamics problems. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5 / 15
页数:11
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