Space-Time and ALE-VMS Techniques for Patient-Specific Cardiovascular Fluid-Structure Interaction Modeling

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    128 Citations (Scopus)

    Abstract

    This is an extensive overview of the core and special space-time and Arbitrary Lagrangian-Eulerian (ALE) techniques developed by the authors' research teams for patient-specific cardiovascular fluid-structure interaction (FSI) modeling. The core techniques are the ALE-based variational multiscale (ALE-VMS) method, the Deforming-Spatial-Domain/Stabilized Space-Time formulation, and the stabilized space-time FSI technique. The special techniques include methods for calculating an estimated zero-pressure arterial geometry, prestressing of the blood vessel wall, 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 technique and its multiscale versions, techniques for the projection of fluid-structure interface stresses, calculation of the wall shear stress and oscillatory shear index, arterial-surface extraction and boundary condition techniques, and a scaling technique for specifying a more realistic volumetric flow rate. With results from earlier computations, we show how these core and special FSI techniques work in patient-specific cardiovascular simulations.

    Original languageEnglish
    Pages (from-to)171-225
    Number of pages55
    JournalArchives of Computational Methods in Engineering
    Volume19
    Issue number2
    DOIs
    Publication statusPublished - 2012 Jun

    Fingerprint

    Fluid structure interaction
    Space-time
    Fluid
    Arbitrary
    Interaction
    Modeling
    Interaction Techniques
    Mesh generation
    Prestressing
    Fluid mechanics
    Blood vessels
    Variational multiscale Method
    Shear stress
    Wall Shear Stress
    Blood Vessels
    Fluid Mechanics
    Mesh Generation
    Flow rate
    Boundary conditions
    Velocity Profile

    Keywords

    • ALE methods
    • Cardiovascular fluid mechanics
    • Cerebral aneurysms
    • Fluid-structure interactions
    • Left ventricular assist devices
    • Space-time methods
    • Special techniques
    • Total cavopulmonary connection

    ASJC Scopus subject areas

    • Computer Science Applications
    • Applied Mathematics

    Cite this

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    abstract = "This is an extensive overview of the core and special space-time and Arbitrary Lagrangian-Eulerian (ALE) techniques developed by the authors' research teams for patient-specific cardiovascular fluid-structure interaction (FSI) modeling. The core techniques are the ALE-based variational multiscale (ALE-VMS) method, the Deforming-Spatial-Domain/Stabilized Space-Time formulation, and the stabilized space-time FSI technique. The special techniques include methods for calculating an estimated zero-pressure arterial geometry, prestressing of the blood vessel wall, 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 technique and its multiscale versions, techniques for the projection of fluid-structure interface stresses, calculation of the wall shear stress and oscillatory shear index, arterial-surface extraction and boundary condition techniques, and a scaling technique for specifying a more realistic volumetric flow rate. With results from earlier computations, we show how these core and special FSI techniques work in patient-specific cardiovascular simulations.",
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    author = "Kenji Takizawa and Yuri Bazilevs and Tezduyar, {Tayfun E.}",
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