原子能科学技术 ›› 2018, Vol. 52 ›› Issue (9): 1598-1608.DOI: 10.7538/yzk.2017.youxian.0824

• 反应堆工程 • 上一篇    下一篇

基于RELAP5和FLUENT的多尺度耦合分析方法研究

赵鹏程1;刘紫静1,2;于涛1,*   

  1. 1.南华大学 核科学技术学院,湖南 衡阳421001;2.中国原子能科学研究院 反应堆工程技术研究部,北京102413
  • 出版日期:2018-09-20 发布日期:2018-09-20

Research on Multi-scale Coupling Method Based on RELAP5 and FLUENT

ZHAO Pengcheng1;LIU Zijing1,2;YU Tao1,*   

  1. 1.School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;2.Division of Reactor Engineering Technology Research, China Institute of Atomic Energy, Beijing 102413, China
  • Online:2018-09-20 Published:2018-09-20

摘要:

基于二次开发得到的铅冷快堆一维系统程序RELAP5_LEAD和三维计算流体力学程序FLUENT,利用动态链接库技术和FLUENT用户自定义函数,开发了多尺度耦合分析程序RELAP5/FLUENT。在单相范围内,分别利用耦合程序RELAP5/FLUENT开展简单铅冷串联管道的瞬态流动和传热模拟、简单铅冷闭式回路的瞬态流动模拟,并与RELAP5_LEAD计算结果开展Code-to-Code对比分析。研究结果表明,RELAP5/FLUENT计算结果与RELAP5_LEAD模拟结果吻合良好,耦合程序的开发取得了初步成功,可用于分析铅冷快堆堆内的复杂三维热工水力现象。

关键词: 多尺度耦合, 系统程序, 计算流体力学程序, RELAP5程序, FLUENT程序, 铅冷快堆

Abstract:

Based on 1D second-development system code RELAP5_LEAD and 3D computational fluid dynamic code FLUENT, a multi-scale coupling code RELAP5/FLUENT was proposed by means of dynamic link library technique and user-defined functions of FLUENT. Under the single phase state, transient flow and heat transfer simulation in simple lead-cooled open circuit and transient flow simulation in simple lead-cooled closed circuit were selected to perform Code-to-Code verification between RELAP5/FLUENT and RELAP5_LEAD. The results show that the RELAP5/FLUENT simulation results are in good agreement with the RELAP5_LEAD calculation results and the multi-scale coupling code has achieved initial success. Through further improvement and fully validation, the multi-scale coupling code can be used to carry out complex 3D thermal-hydraulic phenomena analysis in the lead-cooled fast reactor.

Key words: multi-scale coupling, system code, computational fluid dynamic code, RELAP5 code, FLUENT code, lead-cooled fast reactor