基于统一框架的多物理耦合方案研究与平台开发  

Research and Platform Development of Multi-physical Coupling Scheme Based on Unified Framework

作　　者：钱冠华 于涛[1,2] 杨涛 赵亚楠[1,2] 赵鹏程 Qian Guanhua;Yu Tao;Yang Tao;Zhao Yanan;Zhao Pengcheng(School of Nuclear Science and Technology,University of South China,Hengyang,Hunan,421001,China;Research Center for Digital Nuclear Reactor Engineering and Technology of Hunan Province,University of South China,Hengyang,Hunan,421001,China)

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]数字化反应堆湖南省工程技术研究中心,湖南衡阳421001

出　　处：《核动力工程》2022年第6期51-60,共10页Nuclear Power Engineering

基　　金：国家自然科学基金(11875162);湖南省科技创新团队项目资助(2020RC4053);湖南省教育厅优秀青年项目(20B490)。

摘　　要：为实现反应堆多物理、多过程、高保真数值计算,捕捉堆芯内部更真实的物理学行为,本文深入研究了多物理程序耦合方案,并基于上层监控架构、串行计算模式、网格一一映射的显式耦合方案,依托开源集成平台SALOME、通用平台接口ICoCo、三维堆芯中子学程序ADPRES和系统热工水力程序RELAP5搭建了基于统一框架的多物理耦合平台。经NEACRP-L-335压水堆弹棒基准题验证表明,耦合平台计算结果与基准例题吻合良好,耦合平台在功率峰捕获上更加准确,可释放部分安全裕量;对瞬态末各参数的计算结果也有足够高的精度,证明了耦合平台可对反应堆多物理、多过程耦合工况进行更精细、更深入的数值计算与安全分析。In order to realize the multi-physics,multi-process and high-fidelity numerical calculation of the reactor and capture the more real physical behavior in the reactor core,in this paper,the coupling scheme of multiple physical programs is deeply studied,and based on the upper monitoring architecture,serial computing mode,and the explicit coupling scheme of grid one-to-one mapping,a unified framework-based multi-physical coupling platform is built by relying on the open source integration platform SALOME,the common platform interface ICoCo,the three-dimensional core neutronics program ADPRES,and the system thermal hydraulic program RELAP5.The verification of NEACRP-L-335PWR PWR rod ejection benchmark task shows that the calculation results of the coupling platform are in good agreement with the benchmark task,and the coupling platform is more accurate in power peak capture,which can release part of the safety margin;the calculation results of the parameters at the end of the transient are also accurate enough,which proves that the coupling platform can carry out more precise and in-depth numerical calculation and safety analysis of the reactor multi-physical and multi-process coupling conditions.

关 键 词：数值反应堆 多物理耦合 统一耦合框架 开源集成平台 通用平台接口 

分 类 号：TL365[核科学技术—核技术及应用]