Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
COMPUTIONAL FLUID STRUCTURE INTERACTION OF A TWO-LAYER MODEL AORTA WITH AN ABDOMINAL AORTIC ANEURYSM.
Submission Author:
Charles Motta Possatti junior , SP
Co-Authors:
Charles Motta Possatti junior, Tamires Juliana Reis e Silva, Jonathas Haniel, Rudolf Huebner
Presenter: Charles Motta Possatti junior
doi://10.26678/ABCM.COBEM2019.COB2019-0559
Abstract
The aneurysm is a cardiovascular disease that consists of a dilatation of a particular blood vessel. One of the major problems is to try to prevent this vessel from suffering a rupture due to dilation and in turn the failure of the organ or body region that is nourished by it. In this context, the current work aims to obtain a structural mapping of the region affected by the aneurysm and to evaluate the biomechanical characteristics of the arterial wall and its interaction with the fluid flow of the blood. In this way, a computational simulation of the bilayer model of an aortic artery conditioned to an abdominal aneurysm (AAA) using the fluid-structure interaction (FSI) method was performed to achieve the proposed goals. The FSI method is a joint analysis of the blood flow characteristics with the arterial wall structure, in which the interaction occurs between the pressure and velocity fields obtained from the blood flow to the arterial wall structure. The results presented are comparative fluid-structural maps of the artery with and without aneurysm and an assessment of which layer of the artery (adventitia or media) will be more prone to failure.
Keywords
Bioengineering, cardiovascular bioengineering, FEM, CFD analysis
