Numerical Study of Non-Newtonian Blood Behavior in the Abdominal Aortic Bifurcation of a Patient-Specific at Rest

Oliveira, Carlos; Soares, Armando A.; Simões, André; Gonzaga, Síl; Rouboa, Abel

Numerical Study of Non-Newtonian Blood Behavior in the Abdominal Aortic Bifurcation of a Patient-Specific at Rest

Carlos Oliveira¹, Armando A. Soares^{1, 2, *}, André Simões³, Sílvia Gonzaga², Abel Rouboa^{1, 2, 4}

¹ ECT/UTAD – School of Science and Technology, University of Trás-os-Montes e Alto Douro, Vila Real,Portugal.

² INEGI-Institute of Science and Innovation in Mechanical and Industrial Engineering, Porto, Portugal.

³ Hospital Centre Lisboa Norte, Hospital de Santa Maria e Hospital Pulido Valente, Lisbon, Portugal.

⁴ MEAM-Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA, USA.

Article Information

Identifiers and Pagination:

Year: 2017
Volume: 10
Issue: Suppl-2, M9
First Page: 279
Last Page: 285
Publisher ID: TOSSJ-10-279
DOI: 10.2174/1875399X01710010279

Article History:

Received Date: 4/10/2017
Revision Received Date: 13/12/2017
Acceptance Date: 27/12/2017
Electronic publication date: 29/12/2017
Collection year: 2017

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© 2017 Oliveira et al.

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.

^* Address correspondence to this author at the ECT/UTAD, School of Science and Technology, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal; INEGI-Institute of Science and Innovation in Mechanical and Industrial Engineering, Porto, Portugal; ECT/UTAD, Quinta de Prados, Apartado 1013, 5001-801 Vila Real, Portugal, Tel: +351 259 350 334; Fax: +351 259 350 356; E-mail: asoares@utad.pt

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.

Keywords: Abdominal Aorta, Computational Fluid Dynamics, Hemodynamic, Rest, Shear Thinning, Wall Shear Stress.

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RESEARCH ARTICLE

Numerical Study of Non-Newtonian Blood Behavior in the Abdominal Aortic Bifurcation of a Patient-Specific at Rest

Article Information

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Article History:

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Unique Statistics:

Abstract

Background:

Objective:

Methods:

Results and Conclusion:

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Published Contents

About the Editor

About the Journal

The Open Sports Sciences Journal

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Total Views/Downloads: 879,644

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