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Lee, Deokjung
Computational Reactor physics & Experiment Lab.
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Development of angle-dependent linear source approximation for three-dimensional method of characteristics transport analysis method in STREAM

Author(s)
Choe, JiwonLee, Deokjung
Issued Date
2023-02
DOI
10.1016/j.anucene.2022.109572
URI
https://scholarworks.unist.ac.kr/handle/201301/60365
Citation
ANNALS OF NUCLEAR ENERGY, v.181, pp.109572
Abstract
This paper features the development of angle-dependent linear source (ADLS) approximation for the 2D/3D Method of Characteristics (MOC)/Diamond Differencing (DD) method and its performance analysis simulation. The ADLS MOC/DD applies the linear source approximation to two different types of sources, the sum of fission and scattering source and the angle-wise surface source appearing in the MOC/DD equation. It is demonstrated memory usage and simulation time can be reduced by increasing the source approximation order from the zeroth to the first order.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
ISSN
0306-4549
Keyword (Author)
Angle dependent linear source approximation3D Method of Characteristics (MOC)Neutron transport theory
Keyword
NEUTRON-TRANSPORTBEAVRS BENCHMARK

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