| Issue |
E3S Web Conf.
Volume 128, 2019
XII International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2019)
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 6 | |
| Section | Biomedical Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/201912802003 | |
| Published online | 08 November 2019 | |
Meshing strategy for bifurcation arteries in the context of blood flow simulation accuracy
Poznań University of Technology, Chair of Thermal Engineering,
Piotrowo 3,
60-965
Poznań,
Poland
* Corresponding author: natalia.gr.lewandowska@doctorate.put.poznan.pl
The study presents a mesh dependency study for a carotid artery bifurcation geometry of a real-life specimen. The results of time-averaged velocity profiles at artery control surfaces and wall shear stresses are compared between a set of structured and unstructured meshes, with varying non–dimensional boundary layer first element thickness (y+) parameter. A set of four meshes in total is considered: a full–hexagonal structured mesh, an unstructured tetrahedral mesh with prism inflation layer, both created for y+=1 and y+=30. Apart from numerical results, overall mesh creation work time, overall analysisstability are compared with the mesh quality results: cell non–orthogonality, cell skew and aspect ratio. Numerical results are validated against results of real–life CT examination performed in Poznań Medical University.
© The Authors, published by EDP Sciences, 2019
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