Development of INSL-UniFoam: a multi-physics integrated criticality safety analysis program

Ye Siyuan; Li Honglong; Li Yuehang; Chai Xiang; Liu Xiaojing; He Donghao

doi:10.11884/HPLPB202537.240369

Volume 37 Issue 2

Feb. 2025

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Ye Siyuan, Li Honglong, Li Yuehang, et al. Development of INSL-UniFoam: a multi-physics integrated criticality safety analysis program[J]. High Power Laser and Particle Beams, 2025, 37: 026001. doi: 10.11884/HPLPB202537.240369

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Ye Siyuan, Li Honglong, Li Yuehang, et al. Development of INSL-UniFoam: a multi-physics integrated criticality safety analysis program[J]. High Power Laser and Particle Beams, 2025, 37: 026001. doi: 10.11884/HPLPB202537.240369

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Development of INSL-UniFoam: a multi-physics integrated criticality safety analysis program

doi: 10.11884/HPLPB202537.240369

School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received Date: 2024-10-22
Accepted Date: 2024-12-24
Rev Recd Date: 2024-12-24

Available Online: 2025-01-17

Publish Date: 2025-02-15

Abstract

Abstract

Fast Burst Reactors (FBRs) are important subjects for criticality safety analysis research. They are characterized by irregular geometry, strong transient processes, tight multi-physics coupling, and complex feedback characteristics. This paper introduces an OpenFOAM based multi-physics nuclear criticality safety analysis code named INSL-UniFoam. It integrates discrete ordinate neutron transport solver, heat transfer and stress-strain solvers to detailly model the prompt super-critical burst pulse of FBRs. The UniFoam is first verified in the Godiva-I benchmark under both the steady-state condition and several transient scenarios. The results demonstrate that the program aligns well with the reference solution in terms of K_eff calculation, peak power, and fission yield. Furthermore, it is capable of comprehensively outputting the distributions of power, temperature, and stress-strain throughout the pulse process.
- criticality safety analysis,
- discrete ordinate method,
- neutron transport,
- fast burst reactor,
- multi-physics coupled simulation

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References

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