Velocity and thermal slips impact on boundary layer flow of micropolar nanofluid over a vertical nonlinear stretched Riga sheet

IF 4.2 Q2 NANOSCIENCE & NANOTECHNOLOGY
N. Abbas, W. Shatanawi, K. Rehman, Taqi A. M. Shatnawi
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引用次数: 14

Abstract

In the present analysis, heat and mass transfer of micropolar nanofluid flow over vertical nonlinear Riga stretching sheet is considered. Effects of velocity slip, thermal slip, Joule heating, thermal radiations, variable thermal conductivity, and heat generation are examined. Thermophoresis and Brownian motion effects are highlighted in current study. The mathematical model is developed under flow assumptions, the partial differential equations are formed by implementing the boundary layer approximations. The partial differential equations are further reduced in form of ordinary differential equations by means of suitable transformations. The ordinary differential equations are solved through numerical procedure. The effects physical parameters presented through tables and graphs for the both case of suction/injection. Velocity function declined due to higher values of micropolar parameter. The velocity function declined due to increasing the values of velocity slip. The concentration function declined due to larger values of Brownian motion. The positive values of velocity slip increases the Sherwood number and Nusselt number. The Nusselt number and Sherwood number declined for higher values of thermal slip [Formula: see text]. The values of Sherwood number and Nusselt number declined for higher values of Eckert number [Formula: see text].
速度和热滑移对垂直非线性拉伸Riga片上微极纳米流体边界层流动的影响
在本分析中,考虑了微极纳米流体在垂直非线性里加拉伸片上的传热传质。速度滑移,热滑移,焦耳加热,热辐射,可变导热系数和热产生的影响进行了检查。热泳动效应和布朗运动效应是目前研究的热点。在流动假设下建立了数学模型,通过边界层近似建立了偏微分方程。通过适当的变换,将偏微分方程进一步化为常微分方程。用数值方法求解了常微分方程。通过表格和图表给出了两种吸注情况下物理参数的影响。微极参数越高,速度函数越小。速度函数随着速度差值的增大而减小。布朗运动值越大,浓度函数越小。速度滑移的正值增加了Sherwood数和Nusselt数。热滑移值越高,努塞尔数和舍伍德数越小[公式:见文]。Eckert数越高,Sherwood数和Nusselt数越低[公式:见文]。
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来源期刊
CiteScore
6.00
自引率
1.70%
发文量
24
期刊介绍: Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems is a peer-reviewed scientific journal published since 2004 by SAGE Publications on behalf of the Institution of Mechanical Engineers. The journal focuses on research in the field of nanoengineering, nanoscience and nanotechnology and aims to publish high quality academic papers in this field. In addition, the journal is indexed in several reputable academic databases and abstracting services, including Scopus, Compendex, and CSA's Advanced Polymers Abstracts, Composites Industry Abstracts, and Earthquake Engineering Abstracts.
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