Modeling of Hydrodynamic Processes at a Large Leak of Water into Sodium in the Fast Reactor Coolant Circuit

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• 作者：Sergey Perevoznikov ; ^{perev@ippe.ru" class="auth_mail" title="E-mail the corresponding author} ; Yuriy Shvetsov ; Aleksey Kamayev ; Ilia Pakhomov ; Viacheslav Borisov ; Gennadiy Pazin ; Oleg Mirzeabasov ; Olga Korzun
• 关键词：Fast Reactor ; hydrodynamic process ; mesh-characteristic method ; sodium-water reaction ; steam generator
• 刊名：Nuclear Engineering and Technology
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：48
• 期：5
• 页码：1162-1173
• 全文大小：5145 K

文摘

In this paper, we describe a physicomathematical model of the processes that occur in a sodium circuit with a variable flow cross-section in the case of a water leak into sodium. The application area for this technique includes the possibility of analyzing consequences of this leak as applied to sodium–water steam generators in fast neutron reactors. Hydrodynamic processes that occur in sodium circuits in the event of a water leak are described within the framework of a one-dimensional thermally nonequilibrium three-component gas–liquid flow model (sodium–hydrogen–sodium hydroxide). Consideration is given to the results of a mathematical modeling of experiments involving steam injection into the sodium loop of a circulation test facility. That was done by means of the computer code in which the proposed model had been implemented.