Space-time finite element computation of arterial fluid-structure interactions with patient-specific data

Kenji Takizawa, Jason Christopher, Tayfun E. Tezduyar*, Sunil Sathe

*この研究の対応する著者

研究成果: Article査読

109 被引用数 (Scopus)

抄録

The stabilized space-time fluid-structure interaction (SSTFSI) technique developed by the team for advanced flow simulation and modeling is applied to the computation of arterial fluid-structure interaction (FSI) with patient-specific data. The SSTFSI technique is based on the deforming-spatial-domain/stabilized space-time formulation and is supplemented with a number of special techniques developed for arterial FSI. These include a recipe for pre-FSI computations that improve the convergence of the FSI computations, using an estimated zero-pressure arterial geometry, layers of refined fluid mechanics mesh near the arterial walls, and a special mapping technique for specifying the velocity profile at an inflow boundary with non-circular shape. In the test computations reported here, we focus on a patient-specific middle cerebral artery segment with aneurysm, where the arterial geometry is based on computed tomography images.

本文言語English
ページ(範囲)101-116
ページ数16
ジャーナルInternational Journal for Numerical Methods in Biomedical Engineering
26
1
DOI
出版ステータスPublished - 2010 1月 1
外部発表はい

ASJC Scopus subject areas

  • ソフトウェア
  • 生体医工学
  • モデリングとシミュレーション
  • 分子生物学
  • 計算理論と計算数学
  • 応用数学

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