反应堆核-热-燃耗多物理耦合框架研究与应用

近年来随着高性能计算技术的不断发展，依托先进的超级计算机和数学物理计算方法，对核反应堆开展多物理、多尺度计算成为前沿研究热点。根据反应堆堆芯多物理耦合分析需求，研究了多物理耦合算法，构建了基于中子输运、燃耗、热工子通道的堆芯多物理耦合系统，完成耦合程序开发，实现中子物理、燃耗、热工子通道的多物理耦合计算。利用压水堆组件模型与快堆模型开展输运-燃耗耦合计算测试和核-热耦合计算测试，初步验证了耦合系统功能。

Research and Application of Nuclear-thermal-burnup Multi-physics Coupling Architecture

In recent years, with the continuous development of high performance computing technology, relying on advanced supercomputers and mathematical physics calculation methods, multi-physical and multi-scale calculation of nuclear reactor become a hot research topic. According to the requirements of multi-physical coupling analysis of reactor core, the multi-physical coupling algorithm was studied, the multi-physical coupling system of reactor core based on neutron transport, burnup and thermal sub-channel was constructed, and the coupling program was developed. Multi-physical coupling calculation of neutron physics, burnup and thermal sub-channels was realized. The pressurized water reactor module model and the fast reactor model were used to carry out the transport-burnup coupling calculation test and the nuclear-thermal coupling calculation test, and the coupling system function is preliminarily verified.