Identificador persistente para citar o vincular este elemento:
http://hdl.handle.net/10662/19817
Títulos: | Analysis of finite element and finite volume methods for fluid-structure interaction simulation of blood flow in a real stenosed artery |
Autores/as: | Lopes, Diogo Agujetas Ortiz, Rafael Puga, Helder Teixeira, José Carlos Lima, Rui Alejo González, Juan Pablo Ferrera Llera, Conrado |
Palabras clave: | Interacción fluido-estructura;Flujo de sangre;Estenosis arterial;Paciente específico;Fluid-structure interaction;Stenosed artery;Blood flow;Patient-specific |
Fecha de publicación: | 2021 |
Editor/a: | Elsevier |
Resumen: | This paper presents a qualitative and quantitative comparison between the finite element and the finite volume methods for the fluid-structure interaction simulation of blood flow through a real stenosed artery. The artery geometry corresponds to a severely stenosed (around 75% lumen reduction) portion of the brachiocephalic trunk, located immediately upstream of the bifurcation of this vessel into the right subclavian and right common carotid arteries. The patient-specific geometry was segmented from medical images of a computerized tomography scanner from an individual with the subclavian steal syndrome. Doppler ultrasound velocity measurements were used to determine and impose patient-specific boundary conditions. The numerical simulations were performedin commercial software, Ansys and COMSOL, with a comparative second order discretization for the pressure, velocity and displacement variables. The results of this research disclosed a reasonable overall agreement between the predicted hemodynamics for both approaches. The finite volume method software (Ansys) proved to be more efficient in computational time and memory requirements. |
URI: | http://hdl.handle.net/10662/19817 |
ISSN: | 0020-7403 |
DOI: | 10.1016/j.ijmecsci.2021.106650 |
Colección: | DIMEM - Artículos |
Archivos
Archivo | Descripción | Tamaño | Formato | |
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