Simulation of unsteady blood flow dynamics in the thoracic aorta
In this work, blood flow dynamics was analyzed in a realistic thoracic aorta (TA) model under unsteady-state conditions via velocity contours, secondary flow, pressure and wall shear stress (WSS) distributions. Our results demonstrated that the primary flow velocity is skewed towards the inner wall...
- Autores:
-
Laín, Santiago
Caballero, Andres D.
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2017
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/67558
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/67558
http://bdigital.unal.edu.co/68587/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Blood flow
computational fluid dynamics
hemodynamics
thoracic aorta
wall shear stress
Flujo sanguíneo
dinámica de fluidos computacional
hemodinámica
aorta torácica
esfuerzos cortantes parietales
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Universidad Nacional de Colombia |
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|
dc.title.spa.fl_str_mv |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
title |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
spellingShingle |
Simulation of unsteady blood flow dynamics in the thoracic aorta 62 Ingeniería y operaciones afines / Engineering Blood flow computational fluid dynamics hemodynamics thoracic aorta wall shear stress Flujo sanguíneo dinámica de fluidos computacional hemodinámica aorta torácica esfuerzos cortantes parietales |
title_short |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
title_full |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
title_fullStr |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
title_full_unstemmed |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
title_sort |
Simulation of unsteady blood flow dynamics in the thoracic aorta |
dc.creator.fl_str_mv |
Laín, Santiago Caballero, Andres D. |
dc.contributor.author.spa.fl_str_mv |
Laín, Santiago Caballero, Andres D. |
dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
topic |
62 Ingeniería y operaciones afines / Engineering Blood flow computational fluid dynamics hemodynamics thoracic aorta wall shear stress Flujo sanguíneo dinámica de fluidos computacional hemodinámica aorta torácica esfuerzos cortantes parietales |
dc.subject.proposal.spa.fl_str_mv |
Blood flow computational fluid dynamics hemodynamics thoracic aorta wall shear stress Flujo sanguíneo dinámica de fluidos computacional hemodinámica aorta torácica esfuerzos cortantes parietales |
description |
In this work, blood flow dynamics was analyzed in a realistic thoracic aorta (TA) model under unsteady-state conditions via velocity contours, secondary flow, pressure and wall shear stress (WSS) distributions. Our results demonstrated that the primary flow velocity is skewed towards the inner wall of the ascending aorta; but this skewness shifts towards the posterior wall in the aortic arch and then towards the anterior-outer wall in the descending aorta. Within the three arch branches, the flow velocity is skewed to the distal walls with flow reversal along the proximal walls. Strong secondary flow motion is observed in the TA, especially at the inlet of the arch branches. WSS is highly dynamic, but was found to be the lowest along the proximal walls of the arch branches. Finally, pressure was found to be low along the inner aortic wall and in the proximal walls of the arch branches, and high around the three stagnation regions distal to the arch branches and along the outer wall of the ascending aorta. |
publishDate |
2017 |
dc.date.issued.spa.fl_str_mv |
2017-09-01 |
dc.date.accessioned.spa.fl_str_mv |
2019-07-03T04:32:26Z |
dc.date.available.spa.fl_str_mv |
2019-07-03T04:32:26Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.issn.spa.fl_str_mv |
ISSN: 2248-8723 |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/67558 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/68587/ |
identifier_str_mv |
ISSN: 2248-8723 |
url |
https://repositorio.unal.edu.co/handle/unal/67558 http://bdigital.unal.edu.co/68587/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/ingeinv/article/view/59761 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e Investigación Ingeniería e Investigación |
dc.relation.references.spa.fl_str_mv |
Laín, Santiago and Caballero, Andres D. (2017) Simulation of unsteady blood flow dynamics in the thoracic aorta. Ingeniería e Investigación, 37 (3). 92 - 101. ISSN 2248-8723 |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
dc.format.mimetype.spa.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería |
institution |
Universidad Nacional de Colombia |
bitstream.url.fl_str_mv |
https://repositorio.unal.edu.co/bitstream/unal/67558/1/59761-368117-1-PB.pdf https://repositorio.unal.edu.co/bitstream/unal/67558/2/59761-368117-1-PB.pdf.jpg |
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Repositorio Institucional Universidad Nacional de Colombia |
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spelling |
Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Laín, Santiago5890fec6-1a5b-4652-95d3-053d1fa4e418300Caballero, Andres D.0357b67f-7033-4712-9161-27a0000d14623002019-07-03T04:32:26Z2019-07-03T04:32:26Z2017-09-01ISSN: 2248-8723https://repositorio.unal.edu.co/handle/unal/67558http://bdigital.unal.edu.co/68587/In this work, blood flow dynamics was analyzed in a realistic thoracic aorta (TA) model under unsteady-state conditions via velocity contours, secondary flow, pressure and wall shear stress (WSS) distributions. Our results demonstrated that the primary flow velocity is skewed towards the inner wall of the ascending aorta; but this skewness shifts towards the posterior wall in the aortic arch and then towards the anterior-outer wall in the descending aorta. Within the three arch branches, the flow velocity is skewed to the distal walls with flow reversal along the proximal walls. Strong secondary flow motion is observed in the TA, especially at the inlet of the arch branches. WSS is highly dynamic, but was found to be the lowest along the proximal walls of the arch branches. Finally, pressure was found to be low along the inner aortic wall and in the proximal walls of the arch branches, and high around the three stagnation regions distal to the arch branches and along the outer wall of the ascending aorta.En este trabajo se analiza la dinámica del flujo sanguíneo en un modelo realista de la aorta torácica (TA, por sus siglas en inglés) en condiciones transitorias visualizando las distribuciones de velocidad, flujo secundario, presión y esfuerzos cortantes parietales (WSS). Los resultados obtenidos muestran que la velocidad primaria del flujo tiende hacia la pared interior de la aorta ascendente, pero esta, a su vez, tiende hacia la pared posterior en el arco aórtico y hacia las paredes anterior y exterior en la aorta descendente. En las tres ramificaciones del arco aórtico la velocidad del flujo se acerca hacia las paredes distales mostrando recirculación del flujo en las cercanías de las paredes proximales. En la TA se observa un flujo secundario intenso, especialmente a la entrada de las ramificaciones del arco. Finalmente, la presión es baja a lo largo de la pared interior de la aorta y en las paredes proximales de las ramificaciones, mientras que es alta en las zonas de estancamiento situadas en las paredes distales de las ramificaciones así como a lo largo de la pared exterior de la aorta ascendente.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ingenieríahttps://revistas.unal.edu.co/index.php/ingeinv/article/view/59761Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e InvestigaciónIngeniería e InvestigaciónLaín, Santiago and Caballero, Andres D. (2017) Simulation of unsteady blood flow dynamics in the thoracic aorta. Ingeniería e Investigación, 37 (3). 92 - 101. ISSN 2248-872362 Ingeniería y operaciones afines / EngineeringBlood flowcomputational fluid dynamicshemodynamicsthoracic aortawall shear stressFlujo sanguíneodinámica de fluidos computacionalhemodinámicaaorta torácicaesfuerzos cortantes parietalesSimulation of unsteady blood flow dynamics in the thoracic aortaArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL59761-368117-1-PB.pdfapplication/pdf5184823https://repositorio.unal.edu.co/bitstream/unal/67558/1/59761-368117-1-PB.pdf63c59ce244759c9bea754c1e4aeb8a95MD51THUMBNAIL59761-368117-1-PB.pdf.jpg59761-368117-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8461https://repositorio.unal.edu.co/bitstream/unal/67558/2/59761-368117-1-PB.pdf.jpg5d2792fd54bba993198a3a760ef6af6cMD52unal/67558oai:repositorio.unal.edu.co:unal/675582023-05-30 23:03:07.53Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |