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contributor authorD. G. Shombert
date accessioned2017-05-08T23:37:40Z
date available2017-05-08T23:37:40Z
date copyrightNovember, 1992
date issued1992
identifier issn0148-0731
identifier otherJBENDY-25891#521_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/109820
description abstractFluid dynamic properties of Dacron vascular grafts were studied under controlled steady-flow conditions over a Reynolds number range of 800 to 4500. Knitted and woven grafts having nominal diameters of 6 mm and 10 mm were studied. Thermal anemometry was used to measure centerline velocity at the downstream end of the graft; pressure drop across the graft was also measured. Transition from laminar flow to turbulent flow was observed, and turbulence intensity and turbulent stresses (Reynolds normal stresses) were measured in the turbulent regime. Knitted grafts were found to have greater pressure drop than the woven grafts, and one sample was found to have a critical Reynolds number (Rc ) of less than one-half the value of Rc for a smooth-walled tube.
publisherThe American Society of Mechanical Engineers (ASME)
titleMeasurement of Steady-Flow Instability and Turbulence Levels in Dacron Vascular Grafts
typeJournal Paper
journal volume114
journal issue4
journal titleJournal of Biomechanical Engineering
identifier doi10.1115/1.2894105
journal fristpage521
journal lastpage526
identifier eissn1528-8951
keywordsFlow (Dynamics)
keywordsTurbulence
keywordsReynolds number
keywordsStress
keywordsPressure drop
keywordsLaminar flow AND Fluids
treeJournal of Biomechanical Engineering:;1992:;volume( 114 ):;issue: 004
contenttypeFulltext


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