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Effects of the Non-Newtonian Viscosity of Blood on Flow Field in a Constricted Artery with a Porous Plaque

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2015

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
Nowadays many people lose their lives due to cardiovascular diseases. Inappropriate food habits and lack of exercise expedite deposit process of fatty substances on inner surface of blood arteries. This abnormal lump disturbs uniform blood flow and reduces oxygen delivery to active organs. This work presents a numerical simulation of Non-Newtonian blood flow in a stenosis vessel. The vessel is considered as two dimensional channel and plaque area is modelled as a homogenous porous medium. To simulate blood flow reaction around stenosis region, we use C++ code and solve coupled Cauchy, Darcy, governing continuity and energy equations. The analyses results show that viscosity power (n) plays an important role in flow separation and the size of the eddy at the downstream edge of the plaque. It is also observed that with increasing (n) value, temperature discontinuity and likelihood of vessel rupture declined.
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REFERENCES

References: 

[1] M. Madjid, M. Naghavi, B. A. Malik, S. Litovsky, J. T. Willerson, and
W. Casscells, "Thermal detection of vulnerable plaque," The American
journal of cardiology, vol. 90, pp. L36-L39, 2002.
[2] P. Neofytou and D. Drikakis, "Effects of blood models on flows through
a stenosis," International journal for numerical methods in fluids, vol.
43, pp. 597-635, 2003.
[3] M. Rosenfeld and S. Einav, "The effect of constriction size on the
pulsatile flow in a channel," Journal of fluids engineering, vol. 117, pp.
571-576, 1995.
[4] P. Neofytou and S. Tsangaris, "Flow effects of blood constitutive
equations in 3D models of vascular anomalies," International journal
for numerical methods in fluids, vol. 51, pp. 489-510, 2006.
[5] F. Mallinger and D. Drikakis, "Instability in three-dimensional,
unsteady, stenotic flows," International Journal of Heat and Fluid Flow,
vol. 23, pp. 657-663, 2002.
[6] S. Chakravarty and S. Sen, "Dynamic response of heat and mass transfer
in blood flow through stenosed bifurcated arteries," Korea-Aust. Rheol.
J, vol. 17, pp. 47-62, 2005.
[7] V. Rathod and S. Tanveer, "Pulsatile flow of couple stress fluid through
a porous medium with periodic body acceleration and magnetic field,"
Bull. Malays. Math. Sci. Soc.(2), vol. 32, pp. 245-259, 2009.
[8] H. Alimohamadi and M. Imani, "Finite Element Simulation of Two-
Dimensional Pulsatile Blood Flow Through a Stenosed Artery in the
Presence of External Magnetic Field," International Journal for
Computational Methods in Engineering Science and Mechanics, vol. 15,
pp. 390-400, 2014.
[9] O. Ley and T. Kim, "Determination of atherosclerotic plaque
temperature in large arteries," International Journal of Thermal
Sciences, vol. 47, pp. 147-156, 2008.
[10] O. Ley and T. Kim, "Calculation of arterial wall temperature in
atherosclerotic arteries: effect of pulsatile flow, arterial geometry, and
plaque structure," Biomed. Eng. Online, vol. 6, 2007.
[11] H. Alimohamadi, M. Imani, and M. Shojaeizadeh, "Numerical
Simulation Of Porosity Effect On Blood Flow Pattern And
Atherosclerotic Plaques Temperature," 2014.
[12] O. I. Craciunescu and S. T. Clegg, "Pulsatile blood flow effects on
temperature distribution and heat transfer in rigid vessels," Journal of
biomechanical engineering, vol. 123, pp. 500-505, 2001.
[13] H. Alimohamadi and M. Imani, "Transient Non-Newtonian Blood Flow
under Magnetic Targeting Drug Delivery in an Aneurysm Blood Vessel
with Porous Walls," International Journal for Computational Methods
in Engineering Science and Mechanics, vol. 15, pp. 522-533, 2014.
[14] D. K. Stangeby and C. R. Ethier, "Computational analysis of coupled
blood-wall arterial LDL transport," Journal of biomechanical
engineering, vol. 124, pp. 1-8, 2002.
[15] Y. I. Cho and K. R. Kensey, "Effects of the non-Newtonian viscosity of
blood on flows in a diseased arterial vessel. Part 1: Steady flows,"
Biorheology, pp. 241-62, 1991.
[16] R. Ellahi, S. Rahman, M. M. Gulzar, S. Nadeem, and K. Vafai, "A
mathematical study of non-Newtonian micropolar fluid in arterial blood
flow through composite stenosis," Appl. Math, vol. 8, pp. 1567-1573,
2014.

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