DNS of flow in stenosed carotid artery

Leopold Grinberg, Alexander Yakhot, George Karniadakis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Direct numerical simulation (DNS) of a three-dimensional flow through a stenosed carotid artery has been performed. Onset of turbulence downstream of the occlusion has been observed. The developing turbulence is characterized by an alternating spatio-temporal transitional regime. The transition to turbulence occurs during the systolic phase approximately five throat-diameters downstream of the throat, while laminarization occurs during the diastolic phase. Transition in space is first enhanced and subsequently decays downstream. The wall shear stress increases in the stenosed internal carotid artery due to the vessel occlusion and as the result of turbulence.
Original languageEnglish GB
Title of host publicationAmerican Physical Society, 59th Annual Meeting of the APS Division of Fluid Dynamics, November 19-21, 2006
StatePublished - 1 Nov 2006

Publication series

NameAmerican Physical Society, 59th Annual Meeting of the APS Division of Fluid Dynamics, November 19-21, 2006

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