Weighted Monte Carlo solution of neutron kinetics equations

Li Jie; Li Yunzhao; Wu Hongchun; Zheng Qi

doi:10.11884/HPLPB201830.170242

Volume 30 Issue 1

Jan. 2018

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Li Jie, Li Yunzhao, Wu Hongchun, et al. Weighted Monte Carlo solution of neutron kinetics equations[J]. High Power Laser and Particle Beams, 2018, 30: 016009. doi: 10.11884/HPLPB201830.170242

Citation:

Li Jie, Li Yunzhao, Wu Hongchun, et al. Weighted Monte Carlo solution of neutron kinetics equations[J]. High Power Laser and Particle Beams, 2018, 30: 016009. doi: 10.11884/HPLPB201830.170242

Li Jie, Li Yunzhao, Wu Hongchun, et al. Weighted Monte Carlo solution of neutron kinetics equations[J]. High Power Laser and Particle Beams, 2018, 30: 016009. doi: 10.11884/HPLPB201830.170242

Citation:

Li Jie, Li Yunzhao, Wu Hongchun, et al. Weighted Monte Carlo solution of neutron kinetics equations[J]. High Power Laser and Particle Beams, 2018, 30: 016009. doi: 10.11884/HPLPB201830.170242

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Weighted Monte Carlo solution of neutron kinetics equations

doi: 10.11884/HPLPB201830.170242

Xi'an Jiaotong University, Xi'an 710049, China

Received Date: 2017-04-15
Rev Recd Date: 2017-09-15
Publish Date: 2018-01-15

Abstract

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.
- Monte Carlo method,
- neutron kinetics,
- analog Monte Carlo method,
- weighted Monte Carlo method,
- point-core model

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References(10)

References

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