基于模块化射线追踪的矩阵MOC方法(1)——理论研究  

Matrix Method of Characteristics Based on Modular Ray Tracing(1)——Theory

作　　者：吴文斌[1,2] 李庆[2] 王侃[1] 

机构地区：[1]清华大学工程物理系,北京100084 [2]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610041

出　　处：《核动力工程》2014年第3期129-133,共5页Nuclear Power Engineering

摘　　要：研究基于模块化射线追踪的矩阵特征线(MOC)方法,在模块化技术的基础上,提出计算对称堆芯的方法,降低内存消耗并提高计算效率;分析系数矩阵的构造过程,挖掘系数矩阵的数值特性,该数值特性的综合利用节省了系数矩阵的构造时间和存储空间;基于模块化矩阵MOC方法研究多群耦合的广义极小残差(GMRES)算法,加速了上散射条件下的多群迭代。Matrix MOC based on modular ray tracing consuming less memory for geometrical information was studied. Method making use of the symmetry of problems based on modular ray tracing was proposed which reduces memory demands and improves efficiency furthermore. The numeric properties of the coefficient matrix were dug out by analysis of the construction process, due to which constructing computation and memory demand can be reduced significantly. In case of upscatter, multi-group GMRES based on Matrix MOC and its numeric properties was studied for accelerating the multi-group iterations.

关 键 词：矩阵特征线(MOC) 模块化技术 堆芯对称性 多群耦合的广义极小残差(GMRES)算法 

分 类 号：TL329.2[核科学技术—核技术及应用]