Newtonian and non-Newtonian pulsatile flows through an artery with stenosis
Other Title(s)
تدفقات النبض النيوتونية و غير النيوتونية عبر شريان مصاب بالضيق
Joint Authors
Abd al-Samad
Halder, Paresh
Husayn, Afzal
Zanid, Muhammad
Source
The Journal of Engineering Research
Issue
Vol. 14, Issue 2 (31 Dec. 2017), pp.191-205, 15 p.
Publisher
Sultan Qaboos University College of Engineering
Publication Date
2017-12-31
Country of Publication
Oman
No. of Pages
15
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
The current study presents three-dimensional modeling and analysis of blood flow through artery stenosis under several variants of pulsatile flow to mimic the atherosclerosis artery disease.
The study considered Newtonian and non-Newtonian blood flow models and solved the threedimensional laminar and unsteady Navier-Stokes (NS) equations for different inlet velocity profiles.
The Carreau Yasuda model was used for hemodynamics modeling of fluid viscosity.
A comparative analysis was carried out for Newtonian and non-Newtonian fluid models under several simple pulsatile, equivalent pulsatile and physiological velocity profiles.
The non-Newtonian fluid exhibited a higher centerline velocity.
Wall shear stresses, shear strain rates, velocity fields, and vortex distribution for Newtonian and non-Newtonian fluid flows show significant differences.
A higher wall shear was noticed near the stenosis.
The vortex formed near the stenosis shifts to upstream and downstream of the stenosis with the change of velocity pulse.
The velocity profile deflates more for non-Newtonian flows than the Newtonian flows.
American Psychological Association (APA)
Halder, Paresh& Husayn, Afzal& Zanid, Muhammad& Abd al-Samad. 2017. Newtonian and non-Newtonian pulsatile flows through an artery with stenosis. The Journal of Engineering Research،Vol. 14, no. 2, pp.191-205.
https://search.emarefa.net/detail/BIM-801171
Modern Language Association (MLA)
Halder, Paresh…[et al.]. Newtonian and non-Newtonian pulsatile flows through an artery with stenosis. The Journal of Engineering Research Vol. 14, no. 2 (2017), pp.191-205.
https://search.emarefa.net/detail/BIM-801171
American Medical Association (AMA)
Halder, Paresh& Husayn, Afzal& Zanid, Muhammad& Abd al-Samad. Newtonian and non-Newtonian pulsatile flows through an artery with stenosis. The Journal of Engineering Research. 2017. Vol. 14, no. 2, pp.191-205.
https://search.emarefa.net/detail/BIM-801171
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 203-205
Record ID
BIM-801171