Flow of non-Newtonian fluid through a permeable artery having non-uniform cross section with multiple stenosis

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-06-20 DOI:10.3329/jname.v17i1.40942

K. Prasad, P. R. Yasa

引用次数: 4

Abstract

In this paper, the effect of slip on Micropolar fluid in a circular tube of non-uniform cross-section with multiple stenosis have been studied. The coupled equations governing to the flow are calculated by using Homotopy Perturbation Method. The effects of various parameters with heights of the stenosis on the resistance to the flow and wall shear stress have been studied by deriving the expressions for the flow characteristics and their solutions have been obtained. It is found that the resistance to the flow increases with the heights of the stenosis, inclination, Thermophoresis parameter, local temperature Grashof number, local nanoparticle Grashof number, inclination and permeability constant and decreases with Brownian motion parameter. It is found that the shear stress at the wall increases with heights of the stenosis, Brownian motion parameter but decreases with local nanoparticle Grashof number, Thermophoresis parameter and permeability constant. Also, it is observed that the volume of the bolus increases with the increase of permeability constant.

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非牛顿流体通过具有不均匀横截面和多处狭窄的可渗透动脉的流动

本文研究了在具有多个狭窄的非均匀截面圆管中滑动对微电极流体的影响。用同调摄动法计算了控制流动的耦合方程。通过推导流动特性的表达式，研究了不同参数和狭窄高度对流动阻力和壁剪切应力的影响，并得到了它们的解。研究发现，流动阻力随狭窄高度、倾斜度、热电泳参数、局部温度Grashof数、局部纳米颗粒Grashof值、倾斜度和渗透率常数的增加而增加，随布朗运动参数的增加而减小。研究发现，壁面剪切应力随狭窄高度、布朗运动参数的增加而增加，但随局部纳米粒子Grashof数、热电泳参数和渗透常数的增加而减小。此外，观察到团块的体积随着渗透率常数的增加而增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.