Multiphysics Modeling of SNAP 10A/2 Space Reactor with Cardinal
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909603021717504 |
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| author | Dalinger, Maximiliano Merzari, Elia Nguyen, Tri Seneca, Michael Martineau, Richard |
| author_facet | Dalinger, Maximiliano Merzari, Elia Nguyen, Tri Seneca, Michael Martineau, Richard |
| contents | The SNAP 10/A nuclear-powered satellite was launched into space in 1965. The present work discusses the development of a coupled neutronic-thermal hydraulics model with the high-fidelity multiphysics code Cardinal for SNAP 10/A. A comparison of neutronic benchmarks between OpenMC and MCNP5 shows a difference of 304+/-70 pcm. The primary source of difference is that MCNP5 uses a combination of cross-section libraries ENDF/B-VI and ENDF/B-V for minor isotopes. At the same time, the present work utilizes ENDF/B-VIII.0. A comparison against experimental results showed a difference of 355 pcm. A coupled model of the SNAP 10/A reactor is then developed in Cardinal. Temperature results show reasonable agreement with reference calculations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_04024 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Multiphysics Modeling of SNAP 10A/2 Space Reactor with Cardinal Dalinger, Maximiliano Merzari, Elia Nguyen, Tri Seneca, Michael Martineau, Richard Computational Physics The SNAP 10/A nuclear-powered satellite was launched into space in 1965. The present work discusses the development of a coupled neutronic-thermal hydraulics model with the high-fidelity multiphysics code Cardinal for SNAP 10/A. A comparison of neutronic benchmarks between OpenMC and MCNP5 shows a difference of 304+/-70 pcm. The primary source of difference is that MCNP5 uses a combination of cross-section libraries ENDF/B-VI and ENDF/B-V for minor isotopes. At the same time, the present work utilizes ENDF/B-VIII.0. A comparison against experimental results showed a difference of 355 pcm. A coupled model of the SNAP 10/A reactor is then developed in Cardinal. Temperature results show reasonable agreement with reference calculations. |
| title | Multiphysics Modeling of SNAP 10A/2 Space Reactor with Cardinal |
| topic | Computational Physics |
| url | https://arxiv.org/abs/2505.04024 |