Space-time fluid-structure interaction modeling of patient-specific cerebral aneurysms

Tayfun E. Tezduyar*, Kenji Takizawa, Tyler Brummer, Peng R. Chen


研究成果: Review article査読

90 被引用数 (Scopus)


We provide an extensive overview of the core and special techniques developed earlier by the Team for Advanced Flow Simulation and Modeling (T{black star}AFSM) for space-time fluid-structure interaction (FSI) modeling of patient-specific cerebral aneurysms. The core FSI techniques are the Deforming-Spatial-Domain/Stabilized Space-Time (DSD/SST) formulation and the stabilized space-time FSI (SSTFSI) technique. The special techniques include techniques for calculating an estimated zero-pressure (EZP) arterial geometry, a special mapping technique for specifying the velocity profile at an inflow boundary with non-circular shape, techniques for using variable arterial wall thickness, mesh generation techniques for building layers of refined fluid mechanics mesh near the arterial walls, a recipe for pre-FSI computations that improve the convergence of the FSI computations, the Sequentially-Coupled Arterial FSI (SCAFSI) technique and its multiscale versions, techniques for the projection of fluid-structure interface stresses, calculation of the wall shear stress (WSS) and calculation of the oscillatory shear index (OSI) and arterial-surface extraction and boundary condition techniques. We show how these techniques work with results from earlier computations. We also describe the arterial FSI techniques developed and implemented recently by the T{black star}AFSM and present a sample from a wide set of patient-specific cerebral-aneurysm models we computed recently.

ジャーナルInternational Journal for Numerical Methods in Biomedical Engineering
出版ステータスPublished - 2011 11月

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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