Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/71707
Título: | Influence of arterial mechanical properties on carotid blood flow: comparison of CFD and FSI studies |
Autor(es): | Lopes, Diogo Manuel Rodrigues Puga, Hélder Teixeira, J. Carlos Teixeira, S. F. C. F. |
Palavras-chave: | Atherosclerosis Blood flow Carotid artery bifurcation Fluid-structure interaction |
Data: | 2019 |
Editora: | Elsevier |
Revista: | International Journal of Mechanical Sciences |
Citação: | Lopes, D; Puga, H; Teixeira, JCF; Teixeira, SFCF (2019) “Influence of arterial mechanical properties on carotid blood flow: comparison of CFD and FSI studies”, International Journal of Mechanical Sciences, 160, Pages 209-218; https://doi.org/10.1016/j.ijmecsci.2019.06.029 |
Resumo(s): | Carotid artery blood flow is studied to compare models with rigid and elastic walls. Considering a patient-specific geometry and transient boundary conditions. In the case of rigid walls, only the fluid (blood) behavior is considered, in a typical Computational Fluid Dynamics study. With the elastic walls, the reciprocal influence of both fluid and solid (blood and artery) are taken into account, constituting a Fluid-Structure Interaction study. Further more, the study of the influence of mechanical properties of the artery, which become stiffer with the progression of atherosclerosis, on blood flow is also presented, an innovative approach relative to the work done in this field. Results show that the carotid sinus is the preferential zone to develop atherosclerosis, given its low values of Time-Averaged Wall Shear Stress. Additionally, it is fundamental to consider the arterial wall as elastic bodies, given that the rigid model overestimates the flow velocity and Wall Shear Stress. On the different mechanical properties of the vessel, its influence is minimal in the Time-Averaged Wall Shear Stress profiles. However, given the results of the displacement and velocity profiles, their inclusion in blood flow simulations in stenosed arteries should be considered. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/71707 |
DOI: | 10.1016/j.ijmecsci.2019.06.029 |
ISSN: | 0020-7403 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0020740319302899 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | MEtRICs - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0020740319302899-main (1).pdf | 2,89 MB | Adobe PDF | Ver/Abrir |