Abstract:
: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.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
Johnston BM,Johnston PR,Corney S,Kilpatrick Ddoi
10.1016/j.jbiomech.2005.01.034keywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
1116-28issue
6eissn
0021-9290issn
1873-2380pii
S0021-9290(05)00097-7journal_volume
39pub_type
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