Optimization of CFD Meshing for Stented Vessel Geometries

Abstract:

Coronary stent implantation is the most widely used technique currently employed to treat atherosclerosis in coronary artery. Although the optimal technique for bifurcation stenting in terms of clinical outcome is still open to controversy, most previous studies have focused on the single-stenting techniques due to its simpler geometry and easier clinical implantation. While the biomedical environment in a stented coronary bifurcation is extremely challenging to model, Computational Fluid Dynamics (CFD) investigations have been used to study the effect of stent on blood flow patterns, however, in CFD simulation of double-stenting techniques, the presence of two or more stents accentuates the complexity of the geometry and the associated meshes especially in the region where two or multiple stent layers come together. Hence, in this study, complex three-dimensional geometric CFD simulations of a stented vessel have been performed in order to adopt an efficient and optimal meshing method to reduce the high computational cost. In doing so, several meshing strategies were chosen and applied.

• Periodical: Applied Mechanics and Materials (Volume 553)
• Pages: 373-378
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.553.373
• Online since: May 2014
• Authors: Azadeh Lotfi*, Tracie J. Barber
• Keywords: Computational Fluid Dynamics (CFD), Coronary Bifurcation Stenting, Mesh Techniques, Wall Shear Stress (WSS)

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