Optimal Control in Blood Flow Simulations

Detalhes bibliográficos
Autor(a) principal: Guerra, Telma
Data de Publicação: 2014
Outros Autores: Tiago, Jorge, 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/10400.26/22332
Resumo: preprint
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spelling Optimal Control in Blood Flow SimulationsOptimal controlNon-Newtonian fluidsData AssimilationpreprintBlood flow simulations can be improved by integrating known data into thenumerical simulations. Data assimilation techniques based on a variationalapproach play an important role in this issue. We propose a nonlinear optimalcontrol problem to reconstruct the blood flow profile from partial observationsof known data in idealized 2D stenosed vessels. The wall shear stress isincluded in the cost function, which is considered as an important indicatorfor medical purposes. To simplify we assume blood flow as an homogeneousfluid with non-Newtonian behavior. Using a Discretize then Optimize (DO)approach, we solve the nonlinear optimal control problem and we proposea weighted cost function that accurately recovers both the velocity and thewall shear stress profiles. The robustness of such cost function is tested withrespect to different velocity profiles and degrees of stenosis. The filteringeffect of the method is also confirmed. We conclude that this approach canbe successfully used in the 2D caseRepositório ComumGuerra, TelmaTiago, JorgeSequeira, Adélia2018-04-17T10:28:55Z20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.26/22332enginfo: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:10400.26/22332Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:09:41.169120Repositório 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 Optimal Control in Blood Flow Simulations
title Optimal Control in Blood Flow Simulations
spellingShingle Optimal Control in Blood Flow Simulations
Guerra, Telma
Optimal control
Non-Newtonian fluids
Data Assimilation
title_short Optimal Control in Blood Flow Simulations
title_full Optimal Control in Blood Flow Simulations
title_fullStr Optimal Control in Blood Flow Simulations
title_full_unstemmed Optimal Control in Blood Flow Simulations
title_sort Optimal Control in Blood Flow Simulations
author Guerra, Telma
author_facet Guerra, Telma
Tiago, Jorge
Sequeira, Adélia
author_role author
author2 Tiago, Jorge
Sequeira, Adélia
author2_role author
author
dc.contributor.none.fl_str_mv Repositório Comum
dc.contributor.author.fl_str_mv Guerra, Telma
Tiago, Jorge
Sequeira, Adélia
dc.subject.por.fl_str_mv Optimal control
Non-Newtonian fluids
Data Assimilation
topic Optimal control
Non-Newtonian fluids
Data Assimilation
description preprint
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
2018-04-17T10:28:55Z
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/10400.26/22332
url http://hdl.handle.net/10400.26/22332
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
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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