Simulation of the human airways using virtual topology tools and meshing optimization
| Autor: | A. Marcos, Ana Fernandez-Tena, R. Agujetas, C. Ferrera |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
0206 medical engineering Topology (electrical circuits) 02 engineering and technology Computational fluid dynamics Topology Network topology 03 medical and health sciences User-Computer Interface 0302 clinical medicine Pressure Humans Computer Simulation Lung ComputingMethodologies_COMPUTERGRAPHICS Commercial software business.industry Mechanical Engineering 020601 biomedical engineering Aspect ratio (image) Computer Science::Graphics 030228 respiratory system Skewness Spirometry Modeling and Simulation Image-based meshing business Reduction (mathematics) Rheology Tomography X-Ray Computed Biotechnology |
| Zdroj: | Biomechanics and modeling in mechanobiology. 17(2) |
| ISSN: | 1617-7940 |
| Popis: | A method is proposed to improve the quality of the three-dimensional airway geometric models using a commercial software, checking the number of elements, meshing time, and aspect ratio and skewness parameters. The use of real and virtual topologies combined with patch-conforming and patch-independent meshing algorithms results in four different models being the best solution the combination of virtual topology and patch-independent algorithm, due to an excellent aspect ratio and skewness of the elements, and minimum meshing time. The result is a reduction in the computational time required for both meshing and simulation due to a smaller number of cells. The use of virtual topologies combined with patch-independent meshing algorithms could be extended in bioengineering because the geometries handling is similar to this case. The method is applied to a healthy person using their computed tomography images. The resulting numerical models are able to simulate correctly a forced spirometry. |
| Databáze: | OpenAIRE |
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