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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Hemodynamic numerical study of an aneurysm in the vicinity of a three-dimensional arterial bifurcation
Submission Author:
Jeane Batista de Carvalho , BA
Co-Authors:
Gustavo Aparecido Pita Baggio, João Batista Campos Silva, Jeane Batista de Carvalho
Presenter: João Batista Campos Silva
doi://10.26678/ABCM.COBEM2017.COB17-2267
Abstract
In the last decades, there has been a growing concern to measure the dynamic parameters of blood, given the immense losses of lives due to cardiovascular diseases in the history of humanity, among them, the aneurysms. The formation and development of an aneurysm is predominantly degenerative and results from a complex interaction between the biological effects of the arterial wall and the flow and stress due to the hemodynamics. This work intends to analyze the blood only as a Newtonian fluid and to collaborate for a better understanding of the properties of the blood flows inside Abdominal Aortic Aneurysms (AAA) such as velocity, pressure and wall shear stress, considering only turbulent effects. The governing equations were solved using Ansys-Fluent® software, considering the Spallart-Allmaras and k-ε RNG models to describe the turbulence. In this way it was possible to compare the turbulence models and the results obtained were close because both models behave well in situations of adverse flows.
Keywords
Abdominal Aortic Aneurysm, hemodynamics, Bioengineering, Turbulence Models
