The 2D/1D fusion method (2D/1D method) is becoming a popular transport method for whole-core calculations, which reduces the group condense and assembly homogenization approximations in the conventional two-step reactor physics calculations. In most 2D/1D codes, a pin is chosen as a 1D calculation domain, which assumes that the axial leakage of the pin is flat on top/bottom surfaces. Similar to the axial leakage, the radial leakage of every 2D plane also introduces several approximations along axial direction for the 1D calculation. In this paper a 2D/1D fusion code is developed, while a leakage reconstruction method is proposed and applied. In this 2D/1D fusion code, MOC is applied to the radial 2D calculation and the Sn diamond difference method is used for the axial 1D calculation. Numerical results indicate that the 2D/1D fusion code developed in this paper is precise in three-dimensional transport calculation and show the performance of this leakage reconstruction method especially when the leakage term is significant.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5145-6
PROCEEDINGS PAPER
Development and Application of a 2D/1D Fusion Code With Leakage Reconstruction Method
Liang Liang,
Liang Liang
Harbin Engineering University, Harbin, China
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Zhouyu Liu,
Zhouyu Liu
Xi'an Jiaotong University, Xi'an, China
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Hongchun Wu,
Hongchun Wu
Xi'an Jiaotong University, Xi'an, China
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Sheng Wang,
Sheng Wang
Xi'an Jiaotong University, Xi'an, China
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Qian Zhang,
Qian Zhang
Harbin Engineering University, Harbin, China
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Qiang Zhao
Qiang Zhao
Harbin Engineering University, Harbin, China
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Liang Liang
Harbin Engineering University, Harbin, China
Zhouyu Liu
Xi'an Jiaotong University, Xi'an, China
Hongchun Wu
Xi'an Jiaotong University, Xi'an, China
Sheng Wang
Xi'an Jiaotong University, Xi'an, China
Qian Zhang
Harbin Engineering University, Harbin, China
Qiang Zhao
Harbin Engineering University, Harbin, China
Paper No:
ICONE26-81507, V003T02A022; 6 pages
Published Online:
October 24, 2018
Citation
Liang, L, Liu, Z, Wu, H, Wang, S, Zhang, Q, & Zhao, Q. "Development and Application of a 2D/1D Fusion Code With Leakage Reconstruction Method." Proceedings of the 2018 26th International Conference on Nuclear Engineering. Volume 3: Nuclear Fuel and Material, Reactor Physics, and Transport Theory. London, England. July 22–26, 2018. V003T02A022. ASME. https://doi.org/10.1115/ICONE26-81507
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