Pulsatile flow in a model carotid bifurcation.
نویسندگان
چکیده
منابع مشابه
Pulsatile flow in a model carotid bifurcation.
Pulsatile flow in an in vitro model of the human carotid bifurcation was studied by flow visualization using hydrogen bubble techniques. A glass model was constructed after determining an average geometry from 57 biplanar angiograms of 22 subjects ranging from 34 to 77 years of age. The flow pulse used was a half-sine wave superimposed upon a mean flow. Maximum and minimum values of the instant...
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The purpose of this paper is to present a numerical simulation system for blood flow in the carotid artery bifurcation and its validation using experimental data collected in clinical practice. Blood flow is described by the incompressible Navier-Stokes equations and the simulation is carried out under pulsatile conditions using inlet velocities given by a flow wave form obtained by ultrasound ...
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Boundary layer separation in a plexiglass model carotid bifurcation was investigated in relation to the origin of atherosclerotic plaque clinically found in this region. Our model was comparable to a human carotid in both dimensions and geometry. Water flowed through the model at Reynolds numbers from 200 to 1200 under steady and pulsatile flow conditions, with outflow through the external and ...
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Fluid velocities were measured by laser Doppler velocimetry under conditions of pulsatile flow in a scale model of the human carotid bifurcation. Flow velocity and wall shear stress at five axial and four circumferential positions were compared with intimal plaque thickness at corresponding locations in carotid bifurcations obtained from cadavers. Velocities and wall shear stresses during diast...
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ژورنال
عنوان ژورنال: Arteriosclerosis: An Official Journal of the American Heart Association, Inc.
سال: 1983
ISSN: 0276-5047
DOI: 10.1161/01.atv.3.1.31