Joda et al_Acceptted Version.pdf (2.38 MB)
Comparison of a fixed-grid and arbitrary Lagrangian-Eulerian methods on modelling fluid-structure interaction of the aortic valve.
journal contribution
posted on 2019-05-20, 08:50 authored by Akram Joda, Zhongmin Jin, Jon Summers, Sotiris KorossisSotiris KorossisThis study was aimed at assessing the robustness of a fixed-grid fluid-structure interaction method (Multi-Material Arbitrary Lagrangian-Eulerian) to modelling the two-dimensional native aortic valve dynamics and comparing it to the Arbitrary Lagrangian-Eulerian method. For the fixed-grid method, the explicit finite element solver LS-DYNA was utilized, where two independent meshes for the fluid and structure were generated and the penalty method was used to handle the coupling between the fluid and structure domains. For the Arbitrary Lagrangian-Eulerian method, the implicit finite element solver ADINA was used where two separate conforming meshes were used for the valve structure and the fluid domains. The comparison demonstrated that both fluid-structure interaction methods predicted accurately the valve dynamics, fluid flow, and stress distribution, implying that fixed-grid methods can be used in situations where the Arbitrary Lagrangian-Eulerian method fails.
Funding
This work was supported by a Marie Curie EST Fellowship (MEST/CT/2005/020327), the Leeds Centre of Excellence in Medical Engineering funded by the Wellcome Trust and the Engineering and Physical Sciences Research Council, WT088908/z/09/z, an EPSRC Advanced Research Fellowship (EP/D073618/1) and the Marie Curie ITN TECAS (Tissue Engineering Solutions for Cardiovascular Surgery) (Project ID: 317512).
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in MedicineVolume
233Issue
5Pages
544 - 553Citation
JODA, A. ... et al., 2019. Comparison of a fixed-grid and arbitrary Lagrangian-Eulerian methods on modelling fluid-structure interaction of the aortic valve. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 233(5), pp. 544 - 553.Publisher
© IMechE. Published by SAGE PublicationsVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2019-02-21Publication date
2019Notes
This paper was accepted for publication in the journal Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine and the definitive published version is available at https://doi.org/10.1177/0954411919837568ISSN
0954-4119eISSN
2041-3033Publisher version
Language
- en