基于特征线方法的三维中子输运程序(Ⅰ)——边界条件的插值处理

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Three Dimension Neutron Transport Characteristics Method Code（Ⅰ）——Interpolation Treatment of Boundary Condition

1. Department of Engineering Physics, Tsinghua University, Beijing, 100084, China;
2. National Key Laboratory of Reactor System Design Technology, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 特征线方法在处理三维中子输运问题的反射边界条件时存在空间问题和角度问题,本文提出了采用平面插值和球面插值方法来分别处理这两个问题,插值方法不仅可以有效解决空间问题和角度问题,而且三维特征线方法在采用插值方法处理边界条件后对离散求积组和射线布置没有要求。
- 中子输运方程 /
- 特征线方法 /
- 反射边界条件 /
- 插值
Abstract: Spatial and angular problems exist when Method of Characteristics（MOC） treats the reflective boundary condition in 3-D neutron transport problems.Spatial interpolation method and angular interpolation method are proposed to solve the spatial problem and the angular problem respectively.There is no restriction on the choice of angular product quadrature set and ray trajectories layout,when using the interpolation method to treat the reflective boundary condition.
- Neutron transport equation /
- Method of Characteristics /
- Reflective boundary condition /
- Interpolation