Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Analysis of the study performed with CFD software in veins submitted to valvulopathies
Submission Author:
Mariana de Paula Souza , MG
Co-Authors:
Mariana de Paula Souza, Isabela Vieira Soares, João Vitor Azevedo Silva, Estefany de Almeida Freitas, Cristiana Brasil Maia
Presenter: Mariana de Paula Souza
doi://10.26678/ABCM.COBEM2023.COB2023-0955
Abstract
Nearly 50% of American adults have at least one form of cardiovascular disease (CVD). It has been observed an increase in the incidence of cases, especially among pregnant women, people over the age of fifty-five, and conditions such as obesity, diabetes, and high cholesterol, among others. The sooner the detection of CVD, the easier is to treat it. Therefore, diseases developed in the cardiovascular system have been significantly discussed and studied in the past years. Valvulopathies are diseases involving the valves in which blood fluid flows. This dysfunction is responsible for restricting and reducing the useful internal section of the tube, preventing the fluid from circulating freely and reaching the organs efficiently. Flow pressure and velocity are directly related, as described by Bernoulli's equation, with the tendency for the velocity to decrease when the pressure increases. The present work seeks to demonstrate, under the principles and guidelines of fluid mechanics, how the blood fluid reacts to the restrictions present in the valves and the possible consequences to the human body. Recently, several studies are being carried out to predict the behavior of the blood fluid inside the cardiovascular system. Using a commercial code of computational fluid dynamics (CFD), the objective of this paper is to analyze the blood fluid in a tube with boundary conditions similar to the ones in a blood vessel and to predict its behavior when there is a narrowing of the tube cross-section, which happens when the human body is subject to a state of stenosis and/or insufficiency. It is expected to be able to evaluate the correlation between the contraction of the vessel and the pressure on the walls. The high pressure exerted on the inner wall of the tube directly influences the risk of developing subsequent diseases. It is expected to obtain the maximum pressure and compare it with the admissible pressure on the vessel walls.
Keywords
Valvulopathy, CFD, Cardiovascular system, pressure
