A subchannel coarsening method for Serpent2-SUBCHANFLOW applied to a full-core VVER problem

Manuel García; Diego Ferraro; Ville Valtavirta; Riku Tuominen; Uwe Imke; Luigi Mercatali; Victor Sanchez-Espinoza; Jaakko Leppänen

doi:10.1051/epjconf/202124706018

A subchannel coarsening method for Serpent2-SUBCHANFLOW applied to a full-core VVER problem

Manuel García, Diego Ferraro, Ville Valtavirta, Riku Tuominen, Uwe Imke, Luigi Mercatali, Victor Sanchez-Espinoza, Jaakko Leppänen

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

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
Pages (from-to)	1049-1056
Number of pages	8
Journal	EPJ Web of Conferences
Volume	247
DOIs	https://doi.org/10.1051/epjconf/202124706018
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

Keywords

Multiphysics
Serpent2
SUBCHANFLOW
Subchannel coarsening
VVER

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10.1051/epjconf/202124706018Licence: CC BY

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title = "A subchannel coarsening method for Serpent2-SUBCHANFLOW applied to a full-core VVER problem",

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.",

keywords = "Multiphysics, Serpent2, SUBCHANFLOW, Subchannel coarsening, VVER",

author = "Manuel Garc{\'i}a and Diego Ferraro and Ville Valtavirta and Riku Tuominen and Uwe Imke and Luigi Mercatali and Victor Sanchez-Espinoza and Jaakko Lepp{\"a}nen",

note = "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: {\textcopyright} 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/).; International Conference on Physics of Reactors, PHYSOR 2020 : Transition to a Scalable Nuclear Future ; Conference date: 28-03-2020 Through 02-04-2020",

year = "2020",

doi = "10.1051/epjconf/202124706018",

language = "English",

volume = "247",

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A subchannel coarsening method for Serpent2-SUBCHANFLOW applied to a full-core VVER problem. / García, Manuel; Ferraro, Diego; Valtavirta, Ville ; Tuominen, Riku; Imke, Uwe; Mercatali, Luigi; Sanchez-Espinoza, Victor; Leppänen, Jaakko.

In: EPJ Web of Conferences, Vol. 247, 2020, p. 1049-1056.

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

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

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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 -

A subchannel coarsening method for Serpent2-SUBCHANFLOW applied to a full-core VVER problem

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