TY - GEN
T1 - Improved leakage splitting method for the 2D/1D transport calculation
AU - Zhao, Chen
AU - Liu, Zhouyu
AU - Cao, Liangzhi
AU - Wu, Hongchun
N1 - Publisher Copyright:
© 2018 International Conference on Physics of Reactors, PHYSOR 2018: Reactor Physics Paving the Way Towards More Efficient Systems. All rights reserved.
PY - 2018
Y1 - 2018
N2 - The 2D/1D transport method is widely implemented for direct whole-core calculations because of its good balance between efficiency and accuracy. In the 2D/1D transport method, negative total source may occur for MOC calculation in iteration process, which will lead to iteration divergence. The negative total source in the MOC equation is studied and an improved leakage splitting method is proposed to improve stability for 2D/1D transport method in this paper. With the new method, the accuracy is preserved while the memory cost only increases slightly. Finally, high leakage cases, the C5G7 and VERA benchmark are tested to show the accuracy and performance of the proposed method.
AB - The 2D/1D transport method is widely implemented for direct whole-core calculations because of its good balance between efficiency and accuracy. In the 2D/1D transport method, negative total source may occur for MOC calculation in iteration process, which will lead to iteration divergence. The negative total source in the MOC equation is studied and an improved leakage splitting method is proposed to improve stability for 2D/1D transport method in this paper. With the new method, the accuracy is preserved while the memory cost only increases slightly. Finally, high leakage cases, the C5G7 and VERA benchmark are tested to show the accuracy and performance of the proposed method.
KW - 2D/1D transport method
KW - Improved leakage splitting method
KW - NECP-X
UR - https://www.scopus.com/pages/publications/85105982484
M3 - 会议稿件
AN - SCOPUS:85105982484
T3 - International Conference on Physics of Reactors, PHYSOR 2018: Reactor Physics Paving the Way Towards More Efficient Systems
SP - 1254
EP - 1266
BT - International Conference on Physics of Reactors, PHYSOR 2018
PB - Sociedad Nuclear Mexicana, A.C.
T2 - 2018 International Conference on Physics of Reactors: Reactor Physics Paving the Way Towards More Efficient Systems, PHYSOR 2018
Y2 - 22 April 2018 through 26 April 2018
ER -