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Mathematical modelling of blood flow through a tapered overlapping stenosed artery with variable viscosity

2012/09/24 by G. C. Shit, M. Roy, Shit, G. C. +3
Engineering · Medicine · #Coronary Interventions and Diagnostics #FOS: Biological sciences #FOS: Mathematics #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Fluid Dynamics and Turbulent Flows #Nanofluid Flow and Heat Transfer #Numerical Analysis (math.NA) #Tissues and Organs (q-bio.TO)

paper · pdf · doi:10.48550/arxiv.1209.5337

openalex publication_date 2012/09/24 · openalex created_date 2022/10/13 · openalex updated_date 2026/07/28

Abstract

This paper presents a theoretical study of blood flow through a tapered and overlapping stenosed artery under the action of an externally applied magnetic field. The fluid (blood) medium is assumed to be porous in nature. The variable viscosity of blood depending on hematocrit (percentage volume of erythrocytes) is taken into account in order to improve resemblance to the real situation. The governing equation for laminar, incompressible and Newtonian fluid subject to the boundary conditions is solved by using a well known Frobenius method. The analytical expressions for velocity component, volumetric flow rate, wall shear stress and pressure gradient are obtained. The numerical values are extracted from these analytical expressions and are presented graphically. It is observed that the influence of hematocrit, magnetic field and the shape of artery have important impact on the velocity profile, pressure gradient and wall shear stress. Moreover, the effect of primary stenosis on the secondary one has been significantly observed.

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