Comparison of implicit and explicit FSI coupling strategies in cardiovascular system = Comparación de las estrategias implícitas y explícitas de acoplamiento FSI en el sistema cardiovascular

Afkari, Damon and Gabaldón Castillo, Felipe and Rodríguez Soler, Javier (2014). Comparison of implicit and explicit FSI coupling strategies in cardiovascular system = Comparación de las estrategias implícitas y explícitas de acoplamiento FSI en el sistema cardiovascular. In: "IV Reunión del Capítulo Nacional Español de la Sociedad Europea de Biomecánica (ESB)", 20/11/2014-21/11/2014, Valencia, España.

Description

Title: Comparison of implicit and explicit FSI coupling strategies in cardiovascular system = Comparación de las estrategias implícitas y explícitas de acoplamiento FSI en el sistema cardiovascular
Author/s:
  • Afkari, Damon
  • Gabaldón Castillo, Felipe
  • Rodríguez Soler, Javier
Item Type: Presentation at Congress or Conference (Article)
Event Title: IV Reunión del Capítulo Nacional Español de la Sociedad Europea de Biomecánica (ESB)
Event Dates: 20/11/2014-21/11/2014
Event Location: Valencia, España
Title of Book: Actas de la IV Reunión del Capítulo Nacional Español de la Sociedad Europea de Biomecánica
Date: 2014
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Mecánica de Medios Continuos y Teoría de Estructuras
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Comparación de los esquemas de integración temporal explícito e implícito, en la simulación del flujo sanguíneo y su interacción con la pared arterial. There are two major strategies in FSI coupling techniques: implicit and explicit. The general difference between these methodologies is how many times the data is exchanged between the fluid and solid domains at each FSI time-step. In both coupling strategies, the pressure values coming from fluid domain calculations at each time-step are exported to the solid domain, and consequently, the solid domain is analyzed with these imported forces. In contrast to the explicit coupling, in the implicit approach the fluid and solid domain’s data is exchanged several times until the convergence is achieved. Although this method may boost the numerical stabilization, it increases the computational cost due to the extra data exchanges. In cardiovascular simulations, depending on the analysis objectives, one may choose an explicit or implicit approach. In the current work, the advantage of an explicit coupling strategy is highlighted when simulation of pulsatile blood flow in elastic arteries is desired.

More information

Item ID: 37612
DC Identifier: http://oa.upm.es/37612/
OAI Identifier: oai:oa.upm.es:37612
Official URL: http://www.labhuman.com/es/node/710
Deposited by: Memoria Investigacion
Deposited on: 24 Sep 2015 11:07
Last Modified: 24 Sep 2015 11:07
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