Premium
Modelling of fluid–structure interactions with the space–time finite elements: Arterial fluid mechanics
Author(s) -
Tezduyar Tayfun E.,
Sathe Sunil,
Cragin Timothy,
Nanna Bryan,
Conklin Brian S.,
Pausewang Jason,
Schwaab Matthew
Publication year - 2007
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1443
Subject(s) - hyperelastic material , fluid mechanics , finite element method , fluid dynamics , fluid–structure interaction , computation , nonlinear system , mechanics , computational fluid dynamics , continuum mechanics , robustness (evolution) , bifurcation , mathematics , physics , engineering , structural engineering , algorithm , quantum mechanics , gene , biochemistry , chemistry
Abstract The stabilized space–time fluid–structure interaction (SSTFSI) techniques developed by the Team for Advanced Flow Simulation and Modeling (T★AFSM) are applied to FSI modelling in arterial fluid mechanics. Modelling of flow in arteries with aneurysm is emphasized. The SSTFSI techniques used are based on the deforming‐spatial‐domain/stabilized space–time (DSD/SST) formulation and include the enhancements introduced recently by the T★AFSM to increase the scope, accuracy, robustness and efficiency of these techniques. The arterial structures can be modelled with the membrane or continuum elements, both of which are geometrically nonlinear, and the continuum element can be made of linearly elastic or hyperelastic material. Test computations are presented for cerebral and abdominal aortic aneurysms and carotid‐artery bifurcation, where the arterial geometries used in the computations are close approximations to the patient‐specific image‐based data. Copyright © 2007 John Wiley & Sons, Ltd.