Analysis of turbulence models for flow simulation in the aorta

Santos, Samuel; Rojas, Jose M.; Romero, Pau; Lozano, Miguel; Conejero, J. Alberto; García Fernández, Ignacio

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Analysis of turbulence models for flow simulation in the aorta

Author:

Santos, Samuel; Rojas, Jose M.; Romero, Pau; Lozano, Miguel; Conejero, J. Alberto; García Fernández, Ignacio

Publication date:

2021

Editorial:

Servicio de Publicaciones de la Universidad de Oviedo

Citación:

Santos, S.; Rojas, J. M.; Romero, P.; Lozano, M.; Conejero, J. A. y García Fernández, I. (2021) Analysis of turbulence models for flow simulation in the aorta. En Gallego, R. y Mateos, M.(editores) Proceedings of the XXVI Congreso de Ecuaciones Diferenciales y Aplicaciones. XVI Congreso de Matemática Aplicada (pp. 339-343). Oviedo : Universidad de Oviedo, Servicio de Publicaciones

Descripción física:

p. 339-343

Abstract:

Computation ofWall Shear Stress (WSS) in the aorta wall is a relevant problem, since it has been related to the appearance of several cardiovascular diseases. In this context, our aim is to solve Navier-Stokes (NS) equations with boundary conditions in the aorta. For an accurate estimation of WSS, a proper election of the turbulence model is of great relevance. We present a study to compareWSS estimation considering three different turbulence models in the thoracic aorta and an analysis of the influence of the aortic valve. The size and properties of the appropriate mesh to use is also discussed. Our simulations are carried out with the Finite Volume Method solver OpenFoam.