creators_name: Vijayajothi , Paramasivam
creators_name: Kanesan , Muthusamy
creators_name: M. Rafiq, Abdul Kadir
type: article
datestamp: 2012-07-05 05:44:25
lastmod: 2013-05-15 02:15:28
metadata_visibility: show
corp_creators: Open University Malaysia
corp_creators: Universiti Teknologi Malaysia
title: Computer Simulations of Pulsatile Blood Flow in Fusiform Models of Abdominal Aortic Aneurysms
ispublished: pub
subjects: QC
full_text_status: public
keywords: Computational modelling; flow dynamics; fusiform abdominal aortic aneurysms; pulsatile flow
note: This work is licensed under a Creative Commons Attribution 3.0 License.
abstract: Flow dynamics have been investigated in model aneurysms under physiologically realistic pulsatile flow condition via computational modeling techniques. The computer simulations are based on finite element method. Vortex pattern emergence and evolution were evaluated. Throughout the bulge in all models regardless of size, the systolic flow was found to be forward-directed. Vortices were initially evident in the bulge during deceleration from peak systole and further expanded during the retrograde flow phase. Flow in larger models become increasingly unstable compared to smaller models. It was also noted that these unstable flow fields were much significant towards the distal half of the bulge models.  This increased intensity of turbulent flow fields in larger models may contribute significantly to wall shear stress magnitude and subsequently contributing to higher rupture risks. (Abstract by authors)
date: 2012
date_type: published
publication: CFD Letters
volume: 4
number: 2
publisher: ISSR Journals
pagerange: 47-53
refereed: TRUE
issn: 2180-1363
citation:   Vijayajothi , Paramasivam and Kanesan , Muthusamy and M. Rafiq, Abdul Kadir  (2012) Computer Simulations of Pulsatile Blood Flow in Fusiform Models of Abdominal Aortic Aneurysms.  CFD Letters, 4 (2).  pp. 47-53.  ISSN 2180-1363     
document_url: https://library.oum.edu.my/repository/706/1/computer_simulation_kanesan.pdf