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dc.contributor.authorJohnston, BM
dc.contributor.authorJohnston, PR
dc.contributor.authorCorney, S
dc.contributor.authorKilpatrick, D
dc.date.accessioned2017-05-03T13:56:20Z
dc.date.available2017-05-03T13:56:20Z
dc.date.issued2006
dc.date.modified2009-11-24T05:24:48Z
dc.identifier.issn0021-9290
dc.identifier.doi10.1016/j.jbiomech.2005.01.034
dc.identifier.urihttp://hdl.handle.net/10072/14298
dc.description.abstractThis study looks at blood flow through four different right coronary arteries, which have been reconstructed from bi-plane angiograms. Five non-Newtonian blood models, as well as the usual Newtonian model of blood viscosity, are used to study the wall shear stress in each of these arteries at a particular point in the cardiac cycle. It was found that in the case of steady flow in a given artery, the pattern of wall shear stress is consistent across all models. The magnitude of wall shear stress, however, is influenced by the model used and correlates with graphs of shear stress versus strain for each model. For mid-range velocities of around , the models are virtually indistinguishable. Local and global non-Newtonian importance factors are introduced, in an attempt to quantify the types of flows where non-Newtonian behaviour is significant. It is concluded that, while the Newtonian model of blood viscosity is a good approximation in regions of mid-range to high shear, it is advisable to use the Generalised Power Law model (which tends to the Newtonian model in those shear ranges in any case) in order to achieve better approximation of wall shear stress at low shear.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1132458 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherPergamon Press
dc.publisher.placeOxford, UK
dc.publisher.urihttp://www.jbiomech.com/home
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1116
dc.relation.ispartofpageto1128
dc.relation.ispartofjournalJournal of Biomechanics
dc.relation.ispartofvolume39
dc.rights.retentionY
dc.subject.fieldofresearchBiomedical engineering
dc.subject.fieldofresearchMechanical engineering
dc.subject.fieldofresearchSports science and exercise
dc.subject.fieldofresearchcode4003
dc.subject.fieldofresearchcode4017
dc.subject.fieldofresearchcode4207
dc.titleNon-Newtonian blood flow in human right coronary arteries: Transient simulations
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, School of Natural Sciences
gro.rights.copyright© 2006 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2006
gro.hasfulltextFull Text
gro.griffith.authorJohnston, Barbara M.
gro.griffith.authorJohnston, Peter R.


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