A conservative overlap method for multi-block parallelization of compact finite-volume schemes

A conservative approach for MPI-based parallelization of tridiagonal compact schemes is developed in the context of multi-block finite-volume methods. For each block, an enlarged linear system is solved by overlapping a certain number of neighbour cells from adjacent sub-domains. The values at block...

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Autor: Capuano, Francesco|||0000-0003-0274-5260
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/365484
Acceso en línea:https://hdl.handle.net/2117/365484
https://dx.doi.org/10.1016/j.compfluid.2017.10.017
Access Level:acceso abierto
Palabra clave:Fluid mechanics
Turbulence
Compact schemes
Finite-volume method
Local conservation
MPI Parallel computing
Turbulent flows
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
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oai_identifier_str oai:upcommons.upc.edu:2117/365484
network_acronym_str ES
network_name_str España
repository_id_str
spelling A conservative overlap method for multi-block parallelization of compact finite-volume schemesCapuano, Francesco|||0000-0003-0274-5260Fluid mechanicsTurbulenceCompact schemesFinite-volume methodLocal conservationMPI Parallel computingTurbulent flowsMecànica de fluidsTurbulènciaÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsA conservative approach for MPI-based parallelization of tridiagonal compact schemes is developed in the context of multi-block finite-volume methods. For each block, an enlarged linear system is solved by overlapping a certain number of neighbour cells from adjacent sub-domains. The values at block-to-block boundary faces are evaluated by a high-order centered approximation formula. Unlike previous methods, conservation is retained by properly re-computing the common interface value between two neighbouring blocks. Numerical tests show that parallelization artifacts decrease significantly as the number of overlapping cells is increased, at some expense of parallel efficiency. A reasonable trade-off between accuracy and performances is discussed in the paper with reference to both the spectral properties of the method and the results of fully turbulent numerical simulations.Peer ReviewedElsevier20172017-12-0120222022-04-07journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/365484https://dx.doi.org/10.1016/j.compfluid.2017.10.017reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3654842026-05-27T15:37:01Z
dc.title.none.fl_str_mv A conservative overlap method for multi-block parallelization of compact finite-volume schemes
title A conservative overlap method for multi-block parallelization of compact finite-volume schemes
spellingShingle A conservative overlap method for multi-block parallelization of compact finite-volume schemes
Capuano, Francesco|||0000-0003-0274-5260
Fluid mechanics
Turbulence
Compact schemes
Finite-volume method
Local conservation
MPI Parallel computing
Turbulent flows
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
title_short A conservative overlap method for multi-block parallelization of compact finite-volume schemes
title_full A conservative overlap method for multi-block parallelization of compact finite-volume schemes
title_fullStr A conservative overlap method for multi-block parallelization of compact finite-volume schemes
title_full_unstemmed A conservative overlap method for multi-block parallelization of compact finite-volume schemes
title_sort A conservative overlap method for multi-block parallelization of compact finite-volume schemes
dc.creator.none.fl_str_mv Capuano, Francesco|||0000-0003-0274-5260
author Capuano, Francesco|||0000-0003-0274-5260
author_facet Capuano, Francesco|||0000-0003-0274-5260
author_role author
dc.subject.none.fl_str_mv Fluid mechanics
Turbulence
Compact schemes
Finite-volume method
Local conservation
MPI Parallel computing
Turbulent flows
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
topic Fluid mechanics
Turbulence
Compact schemes
Finite-volume method
Local conservation
MPI Parallel computing
Turbulent flows
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
description A conservative approach for MPI-based parallelization of tridiagonal compact schemes is developed in the context of multi-block finite-volume methods. For each block, an enlarged linear system is solved by overlapping a certain number of neighbour cells from adjacent sub-domains. The values at block-to-block boundary faces are evaluated by a high-order centered approximation formula. Unlike previous methods, conservation is retained by properly re-computing the common interface value between two neighbouring blocks. Numerical tests show that parallelization artifacts decrease significantly as the number of overlapping cells is increased, at some expense of parallel efficiency. A reasonable trade-off between accuracy and performances is discussed in the paper with reference to both the spectral properties of the method and the results of fully turbulent numerical simulations.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-12-01
2022
2022-04-07
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/365484
https://dx.doi.org/10.1016/j.compfluid.2017.10.017
url https://hdl.handle.net/2117/365484
https://dx.doi.org/10.1016/j.compfluid.2017.10.017
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,298079

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