Computational simulation of flow in the aortic arch (Influence of the 3-D distortion on flows in the ordinary helix circular tube)

Daisuke Mori, Hao Liu, Takami Yamaguchi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Recent research has shown that the centerline of the human aortic arch does not lie in a plane, but has a three-dimensional (3-D) distortion. This distortion is thought to be a risk factor in the development of aneurysms. In the present study, the aorta was numerically modeled using a computational fluid dynamics method. The flow geometry consisted of a circular tube with a centerline approximated by an ordinary helix. A region with a high component of longitudinal wall shear stress was found distributed along the direction of the torsion. The localization of the wall shear stress distribution is due to complex centrifugal forces, and is discussed with respect to the development of vascular diseases including aneurysms and atherosclerosis.

Original languageEnglish
Pages (from-to)862-866
Number of pages5
JournalJSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing
Volume43
Issue number4
DOIs
Publication statusPublished - 2000 Dec

Keywords

  • 3-D distortion
  • Aneurysm
  • Aortic arch
  • Blood flow
  • CFD
  • Helical circular tube
  • Wall shear stress

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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