Abstract
In this work the use of a hybrid mesh for the thermal hydraulics and fuel behaviour solution in the coupled Ants-SUBCHANFOW-SuperFINIX code system is studied. The idea is to model only the most interesting assemblies in terms of thermal margins on pin-by-pin/subhannel level and other assemblies with lower resolution with the goal of reducing the total calculation time compared to the use of a fully detailed model. As a test case the first cycle of the BEAVRS benchmark is modelled using a hybrid model and the results are compared against previous results obtained using a fully detailed model.
| Original language | English |
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| Title of host publication | Proceedings of M&C 2023 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering |
| Number of pages | 7 |
| ISBN (Electronic) | 978-1-926773-50-6 |
| Publication status | Published - 2023 |
| MoE publication type | A4 Article in a conference publication |
| Event | International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2023 - Niagara Falls, Canada Duration: 13 Aug 2023 → 17 Aug 2023 |
Conference
| Conference | International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2023 |
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| Country/Territory | Canada |
| City | Niagara Falls |
| Period | 13/08/23 → 17/08/23 |
Funding
The authors would like to acknowledge the help of U. Imke with SUBCHANFLOW and the previous work of M. Garc´ıa related to the subchannel coarsening methodology. This work has received funding from the LONKERO project under the Finnish National Research Programme on Nuclear Power Plant Safety, SAFIR2022 and from the DECAPOD project under the Finnish National Nuclear Safety and Waste Management Research Programme, SAFER2028.