A velocity tracking approach for the Data Assimilation problem in blood flow simulations

Detalhes bibliográficos
Autor(a) principal: Tiago, Jorge
Data de Publicação: 2017
Outros Autores: Guerra, Telma, Sequeira, Adélia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.26/22334
Resumo: preprint
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spelling A velocity tracking approach for the Data Assimilation problem in blood flow simulationsblood flowdata assimilationboundary controlsequential quadratic programmingpreprintSeveral advances have been made in Data Assimilation techniques applied to blood flow modeling. Typically,idealized boundary conditions, only verified in straight parts of the vessel, are assumed. We present ageneral approach, based on a Dirichlet boundary control problem, that may potentially be used in differentparts of the arterial system. The relevance of this method appears when computational reconstructions ofthe 3D domains, prone to be considered sufficiently extended, are either not possible, or desirable, due tocomputational costs. Based on taking a fully unknown velocity profile as the control, the approach uses adiscretize then optimize methodology to solve the control problem numerically. The methodology is appliedto a realistic 3D geometry representing a brain aneurysm. The results show that this DA approach may bepreferable to a pressure control strategy, and that it can significantly improve the accuracy associated totypical solutions obtained using idealized velocity profilesRepositório ComumTiago, JorgeGuerra, TelmaSequeira, Adélia2018-04-17T10:37:45Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.26/22334enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T09:53:46Zoai:comum.rcaap.pt:10400.26/22334Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:09:41.262750Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv A velocity tracking approach for the Data Assimilation problem in blood flow simulations
title A velocity tracking approach for the Data Assimilation problem in blood flow simulations
spellingShingle A velocity tracking approach for the Data Assimilation problem in blood flow simulations
Tiago, Jorge
blood flow
data assimilation
boundary control
sequential quadratic programming
title_short A velocity tracking approach for the Data Assimilation problem in blood flow simulations
title_full A velocity tracking approach for the Data Assimilation problem in blood flow simulations
title_fullStr A velocity tracking approach for the Data Assimilation problem in blood flow simulations
title_full_unstemmed A velocity tracking approach for the Data Assimilation problem in blood flow simulations
title_sort A velocity tracking approach for the Data Assimilation problem in blood flow simulations
author Tiago, Jorge
author_facet Tiago, Jorge
Guerra, Telma
Sequeira, Adélia
author_role author
author2 Guerra, Telma
Sequeira, Adélia
author2_role author
author
dc.contributor.none.fl_str_mv Repositório Comum
dc.contributor.author.fl_str_mv Tiago, Jorge
Guerra, Telma
Sequeira, Adélia
dc.subject.por.fl_str_mv blood flow
data assimilation
boundary control
sequential quadratic programming
topic blood flow
data assimilation
boundary control
sequential quadratic programming
description preprint
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
2018-04-17T10:37:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.26/22334
url http://hdl.handle.net/10400.26/22334
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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