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Article: Pulsatile casson fluid flow through a stenosed bifurcated artery

TitlePulsatile casson fluid flow through a stenosed bifurcated artery
Authors
Issue Date2009
PublisherBegell House Inc. The Journal's web site is located at http://www.begellhouse.com/journals/71cb29ca5b40f8f8.html
Citation
International Journal Of Fluid Mechanics Research, 2009, v. 36 n. 1, p. 43-63 How to Cite?
AbstractFlow of a pulsatile Casson fluid through a stenosed bifurcated artery has been investigated in this study. The arteries forming bifurcation are assumed to be symmetric and straight cylinders of finite length and it is also assumed that the outer and inner walls of the bifurcated artery undergo wall motion. The governing momentum equation is written in terms of the shear stress, and the resulting equation along with the initial and boundary conditions are solved numerically. The crucial parameters that influence the flow in the bifurcated artery are the radius of the parent artery and the length of the stenosis in addition to the curvature at the different sections of the bifurcated tube. Flow variables are computed at various locations in the parent and daughter arteries. The velocity is derived from the shear stress using the Casson fluid model. The velocity and the volumetric flow in both the parent and daughter arteries are computed for various parameters. It is observed in both the femoral and coronary arteries that the variation of axial velocity and the flow rate with yield stress is uniform, and flow rate in the daughter artery shows more oscillations with the Casson fluid model than that with the Newtonian one. The effect of flow rheology on the velocity pattern in the daughter artery is greater than in the parent artery. The axial velocity and flow rate are greater in the coronary artery than in the femoral artery, and the wall shear stress in the parent artery increases due to the stenosis. © 2009 Begell House, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/59021
ISSN
2015 SCImago Journal Rankings: 0.190
References

 

DC FieldValueLanguage
dc.contributor.authorShaw, Sen_HK
dc.contributor.authorGorla, RSRen_HK
dc.contributor.authorMurthy, PVSNen_HK
dc.contributor.authorNg, COen_HK
dc.date.accessioned2010-05-31T03:41:33Z-
dc.date.available2010-05-31T03:41:33Z-
dc.date.issued2009en_HK
dc.identifier.citationInternational Journal Of Fluid Mechanics Research, 2009, v. 36 n. 1, p. 43-63en_HK
dc.identifier.issn1064-2277en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59021-
dc.description.abstractFlow of a pulsatile Casson fluid through a stenosed bifurcated artery has been investigated in this study. The arteries forming bifurcation are assumed to be symmetric and straight cylinders of finite length and it is also assumed that the outer and inner walls of the bifurcated artery undergo wall motion. The governing momentum equation is written in terms of the shear stress, and the resulting equation along with the initial and boundary conditions are solved numerically. The crucial parameters that influence the flow in the bifurcated artery are the radius of the parent artery and the length of the stenosis in addition to the curvature at the different sections of the bifurcated tube. Flow variables are computed at various locations in the parent and daughter arteries. The velocity is derived from the shear stress using the Casson fluid model. The velocity and the volumetric flow in both the parent and daughter arteries are computed for various parameters. It is observed in both the femoral and coronary arteries that the variation of axial velocity and the flow rate with yield stress is uniform, and flow rate in the daughter artery shows more oscillations with the Casson fluid model than that with the Newtonian one. The effect of flow rheology on the velocity pattern in the daughter artery is greater than in the parent artery. The axial velocity and flow rate are greater in the coronary artery than in the femoral artery, and the wall shear stress in the parent artery increases due to the stenosis. © 2009 Begell House, Inc.en_HK
dc.languageengen_HK
dc.publisherBegell House Inc. The Journal's web site is located at http://www.begellhouse.com/journals/71cb29ca5b40f8f8.htmlen_HK
dc.relation.ispartofInternational Journal of Fluid Mechanics Researchen_HK
dc.titlePulsatile casson fluid flow through a stenosed bifurcated arteryen_HK
dc.typeArticleen_HK
dc.identifier.emailNg, CO:cong@hku.hken_HK
dc.identifier.authorityNg, CO=rp00224en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1615/InterJFluidMechRes.v36.i1.30en_HK
dc.identifier.scopuseid_2-s2.0-64749102780en_HK
dc.identifier.hkuros154818en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-64749102780&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume36en_HK
dc.identifier.issue1en_HK
dc.identifier.spage43en_HK
dc.identifier.epage63en_HK
dc.identifier.scopusauthoridShaw, S=8206985600en_HK
dc.identifier.scopusauthoridGorla, RSR=7102559147en_HK
dc.identifier.scopusauthoridMurthy, PVSN=7201374020en_HK
dc.identifier.scopusauthoridNg, CO=7401705594en_HK

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