Abstract
This work presents a methodology to coarsen subchannel models to accelerate large-scale Serpent2-SUBCHANFLOW calculations. The method is based on first building a fully detailed subchannel model and then combining subchannels into larger channels with condensed hydraulic parameters. To quantify the accuracy and performance of this scheme, a full-core VVER-1000 problem is simulated with Serpent2-SUBCHANFLOW using two types of coarsened models, as well as a standard subchannel model as reference.
Original language | English |
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Pages (from-to) | 1049-1056 |
Number of pages | 8 |
Journal | EPJ Web of Conferences |
Volume | 247 |
DOIs | |
Publication status | Published - 2020 |
MoE publication type | A4 Article in a conference publication |
Event | International Conference on Physics of Reactors, PHYSOR 2020: Transition to a Scalable Nuclear Future - Cambridge, United Kingdom Duration: 28 Mar 2020 → 2 Apr 2020 |
Funding
This work was done within the McSAFE project which is receiving funding from the Euratom research and training programme 2014-2018 under grant agreement No 755097.
Keywords
- Multiphysics
- Serpent2
- SUBCHANFLOW
- Subchannel coarsening
- VVER