dc.citation.conferencePlace |
US |
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dc.citation.title |
M&C 2019 (The International Conference on Mathematics and Computational Methods applied to Nuclear Science and Engineering) |
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dc.contributor.author |
Lee, Hyunsuk |
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dc.contributor.author |
Zhang, Peng |
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dc.contributor.author |
Lee, Deokjung |
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dc.date.accessioned |
2024-01-31T23:41:20Z |
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dc.date.available |
2024-01-31T23:41:20Z |
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dc.date.created |
2019-12-24 |
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dc.date.issued |
2019-08-26 |
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dc.description.abstract |
The variance overestimation in Monte Carlo (MC) multi-physics simulation is studied on BEAVRS benchmark by using MCS code developed at Ulsan National Institute of Science and Technology (UNIST). The variance overestimation is caused by the negative inter-cycle correlation induced by the multi-physics feedbacks including equilibrium xenon and thermalhydraulics. The overestimation phenomena are studied for radially integrated axial flux distribution. The real standard deviation, apparent standard deviation, and Auto-Correlation Coefficients (ACCs) are calculated. It is shown that the apparent standard deviation is about 2 times larger than the real standard deviation, and overestimation ratio can be estimated accurately using ACCs. |
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dc.identifier.bibliographicCitation |
M&C 2019 (The International Conference on Mathematics and Computational Methods applied to Nuclear Science and Engineering) |
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dc.identifier.scopusid |
2-s2.0-85075358866 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/79339 |
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dc.publisher |
American Nuclear Society |
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dc.title |
VARIANCE OVERESTIMATION IN MONTE CARLO MULTI-PHYSICS SIMULATION |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2019-08-25 |
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