Numerical simulation of physiologically relevant pulsatile flow of blood with shear-rate-dependent viscosity in a stenosed blood vessel

被引：5
|
作者：
Mukhopadhyay, Subrata [1 ]
Mandal, Mani Shankar [2 ]
Mukhopadhyay, Swati [3 ]
机构：
[1] Acharya PC Roy Govt Coll, Dept Math, Siliguri, WB, India
[2] GGDC Kalna I, Dept Math, Purba Bardhaman 713405, WB, India
[3] Univ Burdwan, Dept Math, Burdwan 713104, W Bengal, India
来源：
INTERNATIONAL JOURNAL OF BIOMATHEMATICS | 2018年 / 11卷 / 06期
关键词：
Pulsatile flow; stenosis; stream function-vorticity method; finite difference technique; non-Newtonian fluid; fluid-structure interaction; wall shear stress; flow separation; NON-NEWTONIAN FLUID; ARTERY; CHANNEL; TUBES; MODEL;
D O I：
10.1142/S1793524518500821
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Pulsatile flow of blood in a blood vessel having time-dependent shape (diameter) is investigated numerically in order to understand some important physiological phenomena in arteries. A smooth axi-symmetric cosine shaped constriction is considered. To mimic the realistic situation as far as possible, viscosity of blood is taken to be non-uniform, a shear-thinning viscosity model is considered and a physiologically relevant pulsatile flow is introduced. Taking advantage of axi-symmetry in the proposed problem, the stream function-vorticity formulation is used to solve the governing equations for blood flow. Effect of different parameters associated with the problem on the flow pattern has been investigated and disparities from the Newtonian case are discussed in detail.
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页数：22
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