强激光与粒子束2018，Vol.30Issue(1)：170-175,6.DOI:10.11884/HPLPB201830.170242
求解中子动力学方程的加权蒙特卡罗方法
Weighted Monte Carlo solution of neutron kinetics equations
摘要
Abstract
The solution of time dependent neutronics equations still remains a challenging problem.A weighted Monte Carlo kinetics method (wMCk) is proposed based on traditional analog Monte Carlo kinetics method (aMCk).The "implicit capture" is introduced to avoid the problem of low efficient tallies in aMCk;the definition of particle weighting leads to a more compact simulation flow due to the elimination of stack operation to particle bank.Using this method,a code named NECP-Dandi was developed in mono-energetic point-kinetics model for numerical verification and analysis.11 test cases with different reactivity insertions were employed to verify the method.Numerical results demonstrate that wMCk is superior to aMCk in terms of accuracy,efficiency and code structure.关键词
蒙特卡罗方法/中子动力学/直接蒙特卡罗方法/加权蒙特卡罗方法/点堆Key words
Monte Carlo method/neutron kinetics/analog Monte Carlo method/weighted Monte Carlo method/point-core model分类
能源科技引用本文复制引用
李捷,李云召,吴宏春,郑琪..求解中子动力学方程的加权蒙特卡罗方法[J].强激光与粒子束,2018,30(1):170-175,6.基金项目
国家自然科学基金项目(11522544) （11522544）
