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Vortex generation in two intracranial aneurysms

  • Hafez Asgharzadeh
  • , Iman Borazjani
  • , Jianping Xiang
  • , Hui Meng

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

2 Scopus citations

Abstract

Three-dimensional numerical simulations, using the sharpinterface immersed boundary method, are carried out to investigate the effect of aneurysm shape on the hemodynamics of intracranial aneurysm. In our previous work [1] only a single geometry of an aneurysm was tested, but here two threedimensional geometries are tested by reconstruction from threedimensional rotational angiography of a human subject [2]. The results support our previous hypothesis [1],i.e., when the vortex formation time scale at the parent artery is smaller than the transportation time scale across the aneurysm neck, the flow aneurysm dome is dominated by a dynamic, unsteady vortex formation.

Original languageEnglish
Title of host publication16th International Conference on Advanced Vehicle Technologies; 11th International Conference on Design Education; 7th Frontiers in Biomedical Devices
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791846346
DOIs
StatePublished - 2014
EventASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014 - Buffalo, United States
Duration: Aug 17 2014Aug 20 2014

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume3

Conference

ConferenceASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014
Country/TerritoryUnited States
CityBuffalo
Period08/17/1408/20/14

Keywords

  • Aneurysm
  • Computational fluid dynamics
  • Hemodynamics
  • Immersed boundary
  • Pulsatile flow
  • Vortex formation

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