Abstract
Large eddy simulations (LES) are extensively employed in aerodynamics-related industrial research and applications. However, the application of lattice Boltzmann based LES techniques in vascular blood flow research is less extensively documented. This study investigates the feasibility of employing lattice Boltzmann based large eddy simulation techniques, specifically the Smagorinsky-based subgrid scale turbulence model, for simulating high Reynolds number blood flow at a coarse-grained resolution. Initially, a stenotic channel flow simulation is conducted, with results undergoing validation against existing experimental data and direct numerical simulation results, showing strong agreement for both. Subsequently, our model is applied to simulate aortic stenosis at a resolution of 100 μm, demonstrating the capability to model high Reynolds numbers around 4500, despite such flows conventionally requiring a resolution of around 20 μm. These results underscore the substantial promise of utilising LES techniques in blood flow simulations, benefiting not just the lattice Boltzmann method but also enlightening the broader computational fluid dynamics community. This approach offers advantages for large-scale human simulations at coarser resolutions.
Original language | English |
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Title of host publication | Computational Science – ICCS 2024 - 24th International Conference, 2024, Proceedings |
Editors | Leonardo Franco, Clélia de Mulatier, Maciej Paszynski, Valeria V. Krzhizhanovskaya, Jack J. Dongarra, Peter M. A. Sloot |
Publisher | Springer Science and Business Media Deutschland GmbH |
Pages | 408-420 |
Number of pages | 13 |
ISBN (Print) | 9783031637742 |
DOIs | |
Publication status | Published - 28 Jun 2024 |
Externally published | Yes |
Event | 24th International Conference on Computational Science, ICCS 2024 - Malaga, Spain Duration: 02 Jul 2024 → 04 Jul 2024 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 14836 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 24th International Conference on Computational Science, ICCS 2024 |
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Country/Territory | Spain |
City | Malaga |
Period | 02/07/2024 → 04/07/2024 |
Bibliographical note
Publisher Copyright:© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
Keywords
- Large-eddy simulations
- lattice Boltzmann method
- stenosis of the aorta
- turbulent flow
ASJC Scopus subject areas
- Theoretical Computer Science
- General Computer Science