Kinetic Mechanism Study of Lead-Bismuth Alloy Solidification in Lead-Water Interaction

被引:0
|
作者
Zhang L. [1 ]
Liu D. [1 ]
Deng C. [1 ]
Liu X. [1 ]
机构
[1] School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai
关键词
Dendrite growth; Lead water interaction; Lead-bismuth solidification; Numerical simulation; Steam Generator Tube Rupture (SGTR) accident;
D O I
10.13832/j.jnpe.2023.S1.0051
中图分类号
学科分类号
摘要
To obtain the kinetic mechanism of lead-bismuth alloy solidification during the lead-water interaction and understand the microscopic dendrite growth process, the average flow velocity equation of lead-bismuth alloy between dendrites was developed by analyzing the natural convection of lead-bismuth melt and its influence on the solidification front. In addition, the dendrite growth process was simulated by using the phase field method. The results showed that the fast growth zone of dendrites was markedly tilted toward the incoming flow direction under the joint action of flow fields in two directions. This work can provide kinetic mechanism analysis for lead-bismuth alloy solidification, and provide the theoretical basis for the safe operation of lead-based reactors. © 2023 Yuan Zi Neng Chuban She. All rights reserved.
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页码:51 / 56
页数:5
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