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Parallelization and application of SACOS for whole core thermal-hydraulic analysis
- Source :
- Nuclear Engineering and Technology, Vol 53, Iss 12, Pp 3902-3909 (2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- SACOS series of subchannel analysis codes have been developed by XJTU-NuTheL for many years and are being used for the thermal-hydraulic safety analysis of various reactor cores. To achieve fine whole core pin-level analysis, the input preprocessing and parallel capabilities of the code have been developed in this study. Preprocessing is suitable for modeling rectangular and hexagonal assemblies with less error-prone input; parallelization is established based on the domain decomposition method with the hybrid of MPI and OpenMP. For domain decomposition, a more flexible method has been proposed which can determine the appropriate task division of the core domain according to the number of processors of the server. By performing the calculation time evaluation for the several PWR assembly problems, the code parallelization has been successfully verified with different number of processors. Subsequent analysis results for rectangular- and hexagonal-assembly core imply that the code can be used to model and perform pin-level core safety analysis with acceptable computational efficiency.
- Subjects :
- Pin-level thermal-hydraulic analysis
Series (mathematics)
Computer science
020209 energy
TK9001-9401
Parallelization
Domain decomposition methods
02 engineering and technology
Parallel computing
Division (mathematics)
SACOS
030218 nuclear medicine & medical imaging
Input preprocessing
Thermal hydraulics
03 medical and health sciences
Task (computing)
0302 clinical medicine
Nuclear Energy and Engineering
Core (graph theory)
0202 electrical engineering, electronic engineering, information engineering
Code (cryptography)
Preprocessor
Nuclear engineering. Atomic power
whole Core
Subjects
Details
- Language :
- English
- ISSN :
- 17385733
- Volume :
- 53
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Nuclear Engineering and Technology
- Accession number :
- edsair.doi.dedup.....4e128cfdad7f8fddaca59ada12eafc74