STRAUM-MATXST: A Code System for Multi-group Neutron-Gamma Coupled Transport Calculation with Unstructured Tetrahedral Meshesopen accessSTRAUM-MATXST: A Code System for Multi-group Neutron-Gamma Coupled Transport Calculation with Unstructured Tetrahedral Meshes
- Other Titles
- STRAUM-MATXST: A Code System for Multi-group Neutron-Gamma Coupled Transport Calculation with Unstructured Tetrahedral Meshes
- Authors
- Woo, MyeongHyeon; Hong, Ser Gi
- Issue Date
- Nov-2022
- Publisher
- Korean Nuclear Society
- Keywords
- STRAUM; Discrete ordinates transport calculation; Krylov subspace method; Block preconditioners for thermal; upscattering; MATXST
- Citation
- Nuclear Engineering and Technology, v.54, no.11, pp.4280 - 4295
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Nuclear Engineering and Technology
- Volume
- 54
- Number
- 11
- Start Page
- 4280
- End Page
- 4295
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185821
- DOI
- 10.1016/j.net.2022.07.002
- ISSN
- 1738-5733
- Abstract
- In this paper, a new multi-group neutron-gamma transport calculation code system STRAUM-MATXST for complicated geometrical problems is introduced and its development status including numerical tests is presented. In this code system, the MATXST (MATXS-based Cross Section Processor for SN Transport) code generates multi-group neutron and gamma cross sections by processing MATXS format libraries generated using NJOY and the STRAUM (SN Transport for Radiation Analysis with Unstructured Meshes) code performs multi-group neutron-gamma coupled transport calculation using tetrahedral meshes. In particular, this work presents the recent implementation and its test results of the Krylov subspace methods (i.e., Bi-CGSTAB and GMRES(m)) with preconditioners using DSA (Diffusion Synthetic Acceleration) and TSA (Transport Synthetic Acceleration). In addition, the Krylov subspace methods for accelerating the energy-group coupling iteration through thermal up-scatterings are implemented with new multi-group block DSA and TSA preconditioners in STRAUM.
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