Comparison of four different fluid structure interaction models in a human coronary artery

A. Javadzadegan, A. S C Yong, M. Chang, N. Mansour, M. K C Ng, M. Behnia, L. Kritharides

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Beside pulsatile motion of vessel, there are two additional movements of coronary arteries. One is from the pulsatile momentum of coronary artery while dampened by the supporting soft tissues. Another movement is responsible by contracting myocardium throughout the cardiac cycle with part of epicardial artery tethered to myocardium. In this study, four different external boundary conditions of vessel wall with different degree of rigidity are adapted in fluid-structure interaction (FSI) simulation with realistic geometry re-constructed from left anterior descending (LAD) coronary artery of a coronary angiogram. The results showed that degree of rigidity of the vessel markedly affects the magnitude of wall shear stress (WSS) and the length of recirculation flow in post stenotic regions, especially in the early diastole corresponding to the time of peak flow in coronary arteries.

Original languageEnglish
Title of host publicationProceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012
EditorsP.A. Brandner, B.W. Pearce
Place of PublicationMelbourne
PublisherAustralasian Fluid Mechanics Society
Pages1-4
Number of pages4
ISBN (Electronic)9780646583730
Publication statusPublished - Dec 2012
Externally publishedYes
Event18th Australasian Fluid Mechanics Conference, AFMC - 2012 - Launceston, Australia
Duration: 3 Dec 20127 Dec 2012

Other

Other18th Australasian Fluid Mechanics Conference, AFMC - 2012
CountryAustralia
CityLaunceston
Period3/12/127/12/12

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    Javadzadegan, A., Yong, A. S. C., Chang, M., Mansour, N., Ng, M. K. C., Behnia, M., & Kritharides, L. (2012). Comparison of four different fluid structure interaction models in a human coronary artery. In P. A. Brandner, & B. W. Pearce (Eds.), Proceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012 (pp. 1-4). Melbourne: Australasian Fluid Mechanics Society.