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

CHEN Zhen-Ping; ZHENG Hua-Qing; SUN Guang-Yao; SONG Jing; HAO Li-Juan; HU Li-Qin; WU Yi-Can

doi:10.1088/1674-1137/38/5/058201

Chinese Physics C> 2014, Vol. 38> Issue(5) : 058201 DOI: 10.1088/1674-1137/38/5/058201

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

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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 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.

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CHEN Zhen-Ping, ZHENG Hua-Qing, SUN Guang-Yao, SONG Jing, HAO Li-Juan, HU Li-Qin and WU Yi-Can. Preliminary study on CAD-based method of characteristics for neutron transport calculation[J]. Chinese Physics C, 2014, 38(5): 058201. doi: 10.1088/1674-1137/38/5/058201

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Received: 2013-06-19
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: HU Li-Qin,

Received Date: 2013-06-19

Accepted Date: 1900-01-01

Available Online: 2014-05-05

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 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.

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

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通讯作者: 陈斌, bchen63@163.com

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

Corresponding author: HU Li-Qin,

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