Fluid–structure interaction modeling of patient-specific cerebral aneurysms

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    We provide an overview of the special techniques developed earlier by the Team for Advanced Flow Simulation and Modeling (TwAFSM) for fluid–structure interaction (FSI) modeling of patient-specific cerebral aneurysms. The core FSI techniques are the Deforming-Spatial-Domain/Stabilized Space– Time formulation and the stabilized space–time FSI technique. The special techniques include techniques for calculating an estimated zero-pressure 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, techniques for calculation of the wall shear stress and oscillatory shear index, and arterial-surface extraction and boundary condition techniques. We show, with results from earlier computations, how these techniques work. We also describe the arterial FSI techniques developed and implemented recently by the TwAFSM and present a sample from a wide set of patient-specific cerebral-aneurysm models we computed recently.

    元の言語English
    ページ(範囲)25-45
    ページ数21
    ジャーナルLecture Notes in Computational Vision and Biomechanics
    12
    DOI
    出版物ステータスPublished - 2014

    ASJC Scopus subject areas

    • Signal Processing
    • Biomedical Engineering
    • Artificial Intelligence
    • Computer Science Applications
    • Computer Vision and Pattern Recognition
    • Mechanical Engineering

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