Development of a GPU-accelerated 3D neutron dynamics code for PB-FHR
E, YZ; Zou, Y; Guo, W; Dai, Y; Xu, HJ
2017
发表期刊NUCLEAR ENGINEERING AND DESIGN
ISSN0029-5493
卷号320期号:-页码:88-102
文章类型期刊论文
摘要Pebble bed fluoride-salt cooled high temperature reactor (PB-FHR) is a kind of novel nuclear energy systems, combining advanced techniques such as coated particle fuel and molten-salt coolant to achieve better safety and economy performance. The compact core of a PB-FHR is geometrically complicated due to the randomly-packed pebble bed with fuel motion in a complex core chamber, which yields a highly detailed core-modeling for accurate neutron dynamics analysis. Three-dimensional fine mesh finite volume method is expected to achieve better accuracy because of its strong geometry adaptability in detailed core-modeling, but is much more time-consuming compared to other methods such as coarse mesh nodal method. A GPU-accelerated 3D fine mesh neutron dynamics code (GAND) is developed, using conjugate gradient method (CG) to solve the time-dependent multi-group neutron diffusion equations in r-z-h coordinates. The GAND code is verified by a cylindrical reactor benchmark with good agreement, and is preliminarily applied to a PB-FHR core in both static and transient analysis. Speed-up ratio and other performance of GAND code using different equation preconditioners is studied, a best speed-up ratio of 21.65 has been achieved using Neumann polynomials-preconditioned CG. (C) 2017 Published by Elsevier B.V.
关键词Transient Analysis Reactor System
DOI10.1016/j.nucengdes.2017.04.001
关键词[WOS]TRANSIENT ANALYSIS ; REACTOR ; SYSTEM
收录类别SCI
语种英语
WOS记录号WOS:000405771600009
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28605
专题中科院上海应用物理研究所2011-2018年
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E, YZ,Zou, Y,Guo, W,et al. Development of a GPU-accelerated 3D neutron dynamics code for PB-FHR[J]. NUCLEAR ENGINEERING AND DESIGN,2017,320(-):88-102.
APA E, YZ,Zou, Y,Guo, W,Dai, Y,&Xu, HJ.(2017).Development of a GPU-accelerated 3D neutron dynamics code for PB-FHR.NUCLEAR ENGINEERING AND DESIGN,320(-),88-102.
MLA E, YZ,et al."Development of a GPU-accelerated 3D neutron dynamics code for PB-FHR".NUCLEAR ENGINEERING AND DESIGN 320.-(2017):88-102.
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