TY - JOUR
T1 - A subchannel coarsening method for Serpent2-SUBCHANFLOW applied to a full-core VVER problem
AU - García, Manuel
AU - Ferraro, Diego
AU - Valtavirta, Ville
AU - Tuominen, Riku
AU - Imke, Uwe
AU - Mercatali, Luigi
AU - Sanchez-Espinoza, Victor
AU - Leppänen, Jaakko
N1 - Funding Information:
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.
Publisher Copyright:
© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - Multiphysics
KW - Serpent2
KW - SUBCHANFLOW
KW - Subchannel coarsening
KW - VVER
UR - http://www.scopus.com/inward/record.url?scp=85108419345&partnerID=8YFLogxK
U2 - 10.1051/epjconf/202124706018
DO - 10.1051/epjconf/202124706018
M3 - Article in a proceedings journal
AN - SCOPUS:85108419345
VL - 247
SP - 1049
EP - 1056
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
SN - 2101-6275
T2 - International Conference on Physics of Reactors, PHYSOR 2020
Y2 - 28 March 2020 through 2 April 2020
ER -