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Non-Newtonian blood flow in human right coronary arteries: Transient simulations


Johnston, BM and Jphnston, PR and Corney, SP and Kilpatrick, D, Non-Newtonian blood flow in human right coronary arteries: Transient simulations, Journal of Biomechanics, 39, (6) pp. 1116-1128. ISSN 0021-9290 (2006) [Refereed Article]

DOI: doi:10.1016/j.jbiomech.2005.01.034


This study looks at pulsatile blood flow through four different right coronary arteries, which have been reconstructed from biplane angiograms. A non-Newtonian blood model (the Generalised Power Law), as well as the usual Newtonian model of blood viscosity, is used to study the wall shear stress in each of these arteries over the entire cardiac cycle. The difference between Newtonian and non-Newtonian blood models is also studied over the whole cardiac cycle using the recently generalised global non-Newtonian importance factor. In addition, the flow is studied by considering paths of massless particles introduced into the flow field. The study shows that, when studying the wall shear stress distribution for transient blood flow in arteries, the use of a Newtonian blood model is a reasonably good approximation. However, to study the flow within the artery in greater detail, a non-Newtonian model is more appropriate. © 2005 Elsevier Ltd. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Mathematical Sciences
Research Group:Mathematical physics
Research Field:Mathematical physics not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Corney, SP (Dr Stuart Corney)
UTAS Author:Kilpatrick, D (Professor David Kilpatrick)
ID Code:40061
Year Published:2006
Web of Science® Times Cited:197
Deposited By:Medicine
Deposited On:2006-08-01
Last Modified:2010-06-05

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