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首页> 外文期刊>International journal of non-linear mechanics >Pulsatile flow of Herschel-Bulkley fluid through stenosed arteries-A mathematical model
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Pulsatile flow of Herschel-Bulkley fluid through stenosed arteries-A mathematical model

机译：Herschel-Bulkley流体通过狭窄动脉的脉动流动-数学模型

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摘要

In this paper, the pulsatile flow of blood through stenosed artery is studied. The effects of pulsatility, stenosis and non-Newtonian behavior of blood, assuming the blood to be represented by Herschel-Bulkley fluid, are simultaneously considered. A perturbation method is used to analyze the flow assuming the thickness of plug core region to be non-uniform changing with axial distance. An expression for the variation of plug core radius with time and axial distance is obtained. The variation of pressure gradient with steady flow rate is given. Also the variation of wall shear stress distribution as well as resistance to flow with axial distance for different values of time and for different values of yield stress is given and the results analyzed.
机译：在本文中，研究了通过狭窄的动脉的脉动血流。同时考虑了血液的搏动性，狭窄和非牛顿行为对血液的影响，假设血液以赫歇尔-布克利液为代表。假设塞芯区域的厚度随轴向距离而变化不均匀，则采用摄动法来分析流量。得到了随时间和轴向距离变化的塞芯半径的表达式。给出了压力梯度随稳定流量的变化。还给出了不同时间值和不同屈服应力值下壁面剪切应力分布的变化以及轴向阻力的变化，并对结果进行了分析。

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