Flow-structure coupled analysis of cerebrovascular artery with an aneurysm of realistic geometry

Ken Ichi Funazaki, Masahiro Higashi, Kazutoyo Yamada, Hideo Taniguchi, Noriaki Tomura

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Abstract

This study deals with flow-structure coupled analysis of cerebrovascular arteries with an aneurysm of realistic geometry. Analysis models are constructed from 3D-Computed Tomography data. The flow-structure coupled analysis employs commercial solvers CFX and ANSYS to calculate unsteady movement of the artery wall subjected to pulsatile blood flow. The data transfer between the two solvers is performed by UNIX shell script. Non-Newtonian properties of blood flow is taken into account in this simulation by use of the Carreau-Yasuda viscosity model. In this study, the arterial wall of the analysis model consists of a number of shell elements with linear elasticity. The results show a close relationship between wall shear stress and blood flow during one cardiac cycle. In addition, this study investigates non-Newtonian effect for realistic model.

Original languageEnglish
Pages (from-to)1472-1479
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume73
Issue number7
Publication statusPublished - Jul 1 2007

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

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