Computational modeling of blood as a micropolar fluid in stenosed bifurcated arteries demonstrates significant perturbations in flow rate and impedance at the apex.
Numerical models predict flow alterations in stenosed bifurcations; leaves open clinical relevance pending validation.
The aim of this article is to investigate the blood flow in bifurcated artery with mild stenosis taking blood as a micropolar fluid. The arteries, forming bifurcation are taken to be symmetric and straight cylinders of finite length. The governing equations are non-dimensionalized and coordinate transformation is used to convert the irregular boundary to a regular boundary. The resulting system of equations is solved numerically using the finite difference method. The variation of velocity, microrotation, shear stress, flow rate and impedance near the flow divider with relevant physical parameters are presented graphically. It is found that, due to backflow and secondary flow, impedance and flow rate are perturbed largely at the apex. It is also seen that the microrotation changes it's sign from negative to positive for increase values of bifurcated angle and micropolar coupling number.
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Srinivasacharya et al. (2017) studied this question.
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