2014年
DEVELOPMENT OF NUMERICAL SIMULATION METHOD FOR RELOCATION BEHAVIOR OF MOLTEN DEBRIS IN NUCLEAR REACTORS (1) PRELIMINARY ANALYSIS OF RELOCATION OF MOLTEN DEBRIS TO LOWER PLENUM
PROCEEDINGS OF THE 21ST INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING - 2013, VOL 4
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- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- 出版者・発行元
- AMER SOC MECHANICAL ENGINEERS
We developed the numerical simulation method for predicting the melting core behavior including solidification and relocation based on the three-dimensional multi-phase thermal-hydraulic simulation models. In this code, each of gas, liquid and solid phase are treated individually, and interface between two phases are simulated directly. In this paper, the developed code was applied to numerical simulations of the melting behavior of the simulated fuel assemblies and reactor structures. In the simulation, complicated structures in the BWR lower plenum was simply modeled. A decay heat in molten or solidified debris was also considered. Moreover, several different initial conditions were used to check performance of this code and to evaluate adequacy of the present numerical method. From the present numerical results, it was confirmed that relocation of molten debris in the BWR lower plenum can be simulated by the currently developed code including effects of melting and solidification of debris.
- リンク情報
- ID情報
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- Web of Science ID : WOS:000359512800109