Preliminary study on CAD-based method of characteristics for neutron transport calculation

Our new method makes use of a CAD-based automatic modeling tool, MCAM, for geometry modeling and ray tracing of particle transport in method of characteristics （MOC）. It was found that it could considerably enhance the capability of MOC to deal with more complicated models for neutron transport calc...

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Published inChinese physics C Vol. 38; no. 5; pp. 114 - 120
Main Author 陈珍平 郑华庆 孙光耀 宋婧 郝丽娟 胡丽琴 吴宜灿
Format Journal Article
LanguageEnglish
Published 01.05.2014
Subjects
Approximation
CAD
Diamonds
Discretization
Error analysis
Mathematical analysis
Mathematical models
Method of characteristics
Transport
中子输运计算
光线追踪
几何建模
商务部
建模工具
特性
粒子输运
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Abstract Our new method makes use of a CAD-based automatic modeling tool, MCAM, for geometry modeling and ray tracing of particle transport in method of characteristics （MOC）. It was found that it could considerably enhance the capability of MOC to deal with more complicated models for neutron transport calculation. In our study, the diamond-difference scheme was applied to MOC to reduce the spatial discretization errors of the fiat flux approximation. Based on MCAM and MOC, a new 2D MOC code was developed and integrated into the SuperMC system, which is a Super Multi-function Computational system for neutronics and radiation simulation. The numerical results demonstrated the feasibility and effectiveness of the new method for neutron transport calculation in MOC.
AbstractList Our new method makes use of a CAD-based automatic modeling tool, MCAM, for geometry modeling and ray tracing of particle transport in method of characteristics （MOC）. It was found that it could considerably enhance the capability of MOC to deal with more complicated models for neutron transport calculation. In our study, the diamond-difference scheme was applied to MOC to reduce the spatial discretization errors of the fiat flux approximation. Based on MCAM and MOC, a new 2D MOC code was developed and integrated into the SuperMC system, which is a Super Multi-function Computational system for neutronics and radiation simulation. The numerical results demonstrated the feasibility and effectiveness of the new method for neutron transport calculation in MOC.
Our new method makes use of a CAD-based automatic modeling tool, MCAM, for geometry modeling and ray tracing of particle transport in method of characteristics (MOC). It was found that it could considerably enhance the capability of MOC to deal with more complicated models for neutron transport calculation. In our study, the diamond-difference scheme was applied to MOC to reduce the spatial discretization errors of the flat flux approximation. Based on MCAM and MOC, a new 2D MOC code was developed and integrated into the SuperMC system, which is a Super Multi-function Computational system for neutronics and radiation simulation. The numerical results demonstrated the feasibility and effectiveness of the new method for neutron transport calculation in MOC.
Author 陈珍平 郑华庆 孙光耀 宋婧 郝丽娟 胡丽琴 吴宜灿
AuthorAffiliation University of Science and Technology of China, Hefei 230027, China Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China
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CitedBy_id crossref_primary_10_1016_j_anucene_2014_10_028
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crossref_primary_10_1007_s41872_020_00124_1
crossref_primary_10_1016_j_radphyschem_2019_02_015
crossref_primary_10_1016_j_pnucene_2015_05_002
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Notes method of characteristics, neutron transport calculation, CAD, geometry modeling
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Our new method makes use of a CAD-based automatic modeling tool, MCAM, for geometry modeling and ray tracing of particle transport in method of characteristics （MOC）. It was found that it could considerably enhance the capability of MOC to deal with more complicated models for neutron transport calculation. In our study, the diamond-difference scheme was applied to MOC to reduce the spatial discretization errors of the fiat flux approximation. Based on MCAM and MOC, a new 2D MOC code was developed and integrated into the SuperMC system, which is a Super Multi-function Computational system for neutronics and radiation simulation. The numerical results demonstrated the feasibility and effectiveness of the new method for neutron transport calculation in MOC.
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SubjectTerms Approximation
CAD
Diamonds
Discretization
Error analysis
Mathematical analysis
Mathematical models
Method of characteristics
Transport
中子输运计算
光线追踪
几何建模
商务部
建模工具
特性
粒子输运
Title Preliminary study on CAD-based method of characteristics for neutron transport calculation
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