RESEARCH ARTICLE
Numerical Study of Non-Newtonian Blood Behavior in the Abdominal Aortic Bifurcation of a Patient-Specific at Rest
Carlos Oliveira1, Armando A. Soares1, 2, *, André Simões3, Sílvia Gonzaga2, Abel Rouboa1, 2, 4
Article Information
Identifiers and Pagination:
Year: 2017Volume: 10
Issue: Suppl-2, M9
First Page: 279
Last Page: 285
Publisher ID: TOSSJ-10-279
DOI: 10.2174/1875399X01710010279
Article History:
Received Date: 4/10/2017Revision Received Date: 13/12/2017
Acceptance Date: 27/12/2017
Electronic publication date: 29/12/2017
Collection year: 2017
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Background:
The interaction of blood flow with walls of blood vessels is central for the development and maintenance of cardiovascular health. The analysis of wall shear stress is, therefore, fundamental in hemodynamic studies.
Objective:
The aim of this work is to study numerically the influence of the shear thinning blood properties on the hemodynamics in the abdominal aortic bifurcation for a patient-specific at rest.
Methods:
Were tested two models for the blood dynamic viscosity, one Newtonian and other non-Newtonian, with dependence on hematocrit and total protein minus albumin.
Results and Conclusion:
The results show the shear thinning behavior influence on the velocity distribution and wall shear stress. Furthermore, wall shear stress values are globally lower for non-Newtonian blood model at high velocity values than those for the Newtonian blood model. However, for low velocity values this behavior is inverted.
