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Overset meshing in combination with novel blended weak-strong fluid-structure interactions for simulations of a translating valve in series with a second valve.
- Source :
-
Computer Methods in Biomechanics & Biomedical Engineering . May2024, Vol. 27 Issue 6, p736-750. 15p. - Publication Year :
- 2024
-
Abstract
- Mechanical circulatory support (MCS) devices can bridge the gap to transplant whilst awaiting a viable donor heart. The Realheart Total Artificial Heart is a novel positive-displacement MCS that generates pulsatile flow via bileaflet mechanical valves. This study developed a combined computational fluid dynamics and fluid-structure interaction (FSI) methodology for simulating positive displacement bileaflet valves. Overset meshing discretised the fluid domain, and a blended weak-strong coupling FSI algorithm was combined with variable time-stepping. Four operating conditions of relevant stroke lengths and rates were assessed. The results demonstrated this modelling strategy is stable and efficient for modelling positive-displacement artificial hearts. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10255842
- Volume :
- 27
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Computer Methods in Biomechanics & Biomedical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 176614551
- Full Text :
- https://doi.org/10.1080/10255842.2023.2199903