Numerical simulation of unsteady micropolar hemodynamics in a tapered catheterized artery with a combination of stenosis and aneurysm.
The unsteady flow characteristics of blood are analyzed through a catheterized stenotic artery with post-stenotic dilatation. A rigid tube with a pair of abnormal wall segments in close proximity to each other is employed to geometrically simulate the diseased artery. A micropolar fluid model is use...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 54; no. 9; pp. 1423 - 1437 |
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| Autores principales: | , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Sep2016
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=117576404&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 117576404 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Sep2016 vid: 54 iid: 9 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 117576404 117576404 NLM26541601 10.1007/s11517-015-1415-3 NLM26541601 117576404 ppf: 1423 ppct: 14 formats: fmt: @attributes: type: P tig: atl: Numerical simulation of unsteady micropolar hemodynamics in a tapered catheterized artery with a combination of stenosis and aneurysm. aug: au: Zaman, Akbar Ali, Nasir Anwar Bég, O. Anwar Bég, O affil: Department of Mathematics and Statistics , International Islamic University , Islamabad 44000 Pakistan sug: subj: Hemodynamics Constriction, Pathologic Blood Aneurysm Blood Constriction, Pathologic Physiopathology Arteries Physiology Catheterization, Peripheral Aneurysm Physiopathology Algorithms Blood Circulation Computer Simulation Models, Theoretical Models, Biological Scales ab: The unsteady flow characteristics of blood are analyzed through a catheterized stenotic artery with post-stenotic dilatation. A rigid tube with a pair of abnormal wall segments in close proximity to each other is employed to geometrically simulate the diseased artery. A micropolar fluid model is used to capture the rheological characteristics of the streaming blood in the annulus. The mild stenosis approximation is employed to derive the governing flow equation which is then solved using a robust finite difference method. Particular attention is paid to the effects of geometrical parameters of the arterial wall and rheological parameters of the blood on axial velocity, flow rate, resistance impedance and wall shear stress. The global behavior of blood is also analyzed through instantaneous pattern of streamlines. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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