受布朗运动和热泳机制影响的Williamson纳米流体在水平微通道中的滑移和对流

IF 4.2 Q2 NANOSCIENCE & NANOTECHNOLOGY
A. Felicita, P. Venkatesh, B. Gireesha, M. Krishnamurthy
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引用次数: 0

摘要

目前的工作是试图解释在滑移和对流边界条件下,稳定的MHD Williamson纳米物质流过微通道时,热量和质量的传递以及传热的增强所引起的影响。记录了磁场和粘性耗散对流动的影响。明确阐述了两种众所周知的滑移机制布朗运动和热泳动的同时影响。利用基于射击格式的Runge-Kutta Fehlberg 4 - 5阶方法对得到的非线性控制系统进行了数值说明。各种参数的有关特征已借助图表加以详细研究。结果表明:磁性参数随浮力比参数的增加而降低速度,而Weissenberg数对速度的影响既有上升的也有减少的。据报道,温度随布朗运动和热泳参数的增加而增加,而浓度随布朗运动和热泳参数的增加而下降。并通过图形计算和研究了微通道壁面的热流密度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Slip and convective flow of Williamson nanofluid influenced by Brownian motion and thermophoresis mechanism in a horizontal microchannel
The current work is an attempt to explicate the repercussions caused by the transmission of heat as well as mass along with the enhancement of heat transmission for a steady MHD Williamson nano-substance flowing through the microchannel with slip and convective boundary conditions. The consequence of magnetic field and viscous dissipation on the flow is recorded. The simultaneous impact of the two well-known slip-mechanisms Brownian movement and thermophoresis is elaborated explicitly. The governed non-linear systems obtained were illustrated numerically via Runge-Kutta Fehlberg 4–5th order method based on shooting scheme. The pertinent features of assorted parameters have been scrutinized with the aid of graphs. Results reveal that magnetic parameter along with buoyancy ratio parameter was observed to decline the velocity whereas Weissenberg number displays both rising and depleting conduct on velocity. Temperature was reported to boost with Brownian motion and thermophoresis parameter whereas concentration profile declines with the same. Also drag across the enclosures of the microchannel with wall heat flux are computed and studied through graphs.
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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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