International journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN:2313-626X

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 Volume 5, Issue 11 (November 2018), Pages: 24-32

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 Original Research Paper

 Title: Gravitational influences on micropolar blood flow in a bifurcated artery with mild stenosis

 Author(s): Yan Bin Tan 1, *, Norzieha Mustapha 2

 Affiliation(s):

 1Faculty of Computing and Information Technology, Tunku Abdul Rahman University College, Jalan Genting Klang, Setapak,  Kuala Lumpur, Malaysia
 2Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA Kelantan, Bukit Ilmu, Machang, Kelantan, Malaysia

 https://doi.org/10.21833/ijaas.2018.11.003

 Full Text - PDF          XML

 Abstract:

A finite difference approach has been implemented to study blood flow in a bifurcated artery with a single mild stenosis under the effects of gravitational force. Streaming blood along the vessel segment is assumed to be micropolar, incompressible, laminar, unsteady and fully-developed. Geometry of the blood vessel is modelled as a finite bifurcation. An unsteady two-dimensional nonlinear model is taken where the governing equations are considered together with significant gravity term. The governing equations are solved using Matlab programming. Axial velocities and some blood flow characteristics are obtained and presented in graphical form. From the results, increment of dimensionless gravity parameter value yields lower axial velocity along the bifurcation segment, as well as higher magnitude of outer wall shear stress and lower magnitude of inner wall shear stress. At the branching junction, distortion happens which could lead to various consequences such as multiple stenosis. While gravity term is considered in the study, increment of viscosity yields lower axial velocity and wall shear stress along the vessel segment. These show that gravitational acceleration term and the branching structure are two substantial components to be considered in blood flow model. 

 © 2018 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Bifurcated artery, Blood flow, Gravity, Micropolar fluid, Stenosis

 Article History: Received 5 February 2018, Received in revised form 20 August 2018, Accepted 1 September 2018

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2018.11.003

 Citation:

 Tan YB and Mustapha N (2018). Gravitational influences on micropolar blood flow in a bifurcated artery with mild stenosis. International Journal of Advanced and Applied Sciences, 5(11): 24-32

 Permanent Link:

 http://www.science-gate.com/IJAAS/2018/V5I11/Tan.html

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