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- Lee, Deokjung
- Computational Reactor physics & Experiment Lab.
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APPLICATION OF THE SUPERHOMOGENIZATION METHOD IN THE STREAM/RASTK CODE SYSTEM FOR PIN-BY-PIN CORE ANALYSIS
- Author(s)
- Zhang, Peng, Park, Jinsu, Choe, Jiwon, Choi, Sooyoung, Lee, Deokjung
- Issued Date
- 2019-08-26
- Citation
- M&C 2019 (The International Conference on Mathematics and Computational Methods applied to Nuclear Science and Engineering)
- Abstract
- The Superhomogenization method has been applied in the STREAM/RASTK code system for pin-by-pin calculation. The STREAM lattice code provides the reference solution and the pin cross-sections for the generation of the Superhomogenization factors, and these factors are then used to correct the cross-sections that will be used by the RASTK code for pin-by-pin calculations. To improve the accuracy for some applications, a multi-group transport option has been implemented in RASTK based on simplified spherical harmonics. The numerical results demonstrate the performance of the Superhomogenization method.
- Publisher
- American Nuclear Society
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