摘要
C5G7-TD系列基准问题是经济发展与合作组织核能机构(OECD/NEA)建立的,通过该系列基准题可以验证三维非均匀瞬态输运计算的程序计算能力和计算精度。NECP-X程序是西安交通大学核工程计算物理实验室(NECP)开发的数值反应堆物理计算程序,为了更好地验证其时空中子动力学模块,本文利用NECP-X对C5G7-TD非均匀瞬态基准题阶段1的所有算例进行计算,并与国际知名高保真中子学程序nTRACER进行对比分析,给出总功率和三维精细功率分布随时间的变化。数值结果表明,NECP-X中的时空中子动力学模块计算结果精度高,计算结果分辨率高,计算时间处于国际先进水平,能够满足三维高保真时空动力学计算的需求。
The C5G7-TD benchmark problems are established by Organization for economic development and cooperation Nuclear Energy Agency(OECD/NEA), to verifiy the calculation capability and precise of 3D non-uniform transient transportation calculation code. NECP-X is a numerical reactor physics calculation code developed by Nuclear Engineering Computational Physics Laboratory of Xi’an Jiaotong University. To better verify the space-time neutron kinetics module of high-fidelity neutronics NECP-X, the C5G7-TD benchmark problems are solved by the NECP-X employing faithful models of the core configuration and transient control parameters. For all cases, the NECP-X results are compared with the nTRACER transient simulation results. The results consisting of transient power behaviors and dynamic reactivity changes are presented. The results of the time consumption for three-dimensional cases and the detailed power distribution are also presented. Numerical results show that the results of NECP-X are with high precision and high resolution, the computational time is at the international leading level, and NECP-X can satisfy the requirements of high-fidelity calculation.
作者
王博
刘宙宇
陈军
赵晨
曹良志
吴宏春
Wang Bo;Liu Zhouyu;Chen Jun;Zhao Chen;Cao Liangzhi;Wu Hongchun(Xi'an Jiaotong University,Xi'an,710049,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2020年第3期24-30,共7页
Nuclear Power Engineering
基金
国家自然科学基金(11605130)
国家自然科学基金(11775169)
国防科技工业核动力技术创新中心资助(321300015501)。
