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Adaptive Unified Continuum FEM Modeling of a 3D FSI Benchmark Problem
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz). (Computational Technology Laboratory)ORCID iD: 0000-0002-1695-8809
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz). (Computational Technology Laboratory)
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz). (Computational Technology Laboratory)ORCID iD: 0000-0003-4256-0463
2016 (English)In: International Journal for Numerical Methods in Biomedical Engineering, ISSN 2040-7939, E-ISSN 2040-7947Article in journal (Refereed) Published
Abstract [en]

In this paper we address a 3D fluid-structure interaction (FSI) benchmark problem that represents important characteristics of biomedical modeling. We present a goal-oriented adaptive finite element methodology for incompressible FSI based on a streamline-diffusion type stabilization of the balance equations for mass and momentum for the entire continuum in the domain, which is implemented in the Unicorn/FEniCS software framework. A phase marker function and its corresponding transport equation is introduced to select the constitutive law, where the mesh tracks the discontinous fluid-structure interface. This results in a unified simulation method for fluids and structures. We present detailed results for the benchmark problem compared to experiments, together with a mesh convergence study.

Place, publisher, year, edition, pages
2016.
Keyword [en]
adaptive finite element method, fluid-structure interaction, benchmark problem
National Category
Computational Mathematics
Research subject
Applied and Computational Mathematics
Identifiers
URN: urn:nbn:se:kth:diva-198080OAI: oai:DiVA.org:kth-198080DiVA: diva2:1055374
Note

QC 20151213. cnm.2851

Available from: 2016-12-12 Created: 2016-12-12 Last updated: 2017-06-08Bibliographically approved

Open Access in DiVA

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http://dx.doi.org/10.1002/cnm.2851

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Jansson, JohanDegirmenci, CemHoffman, Johan
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