焦耳加热和热辐射对MHD边界层的影响纳米流体沿热分层介质指数拉伸表面流动

IF 4.2 Q2 NANOSCIENCE & NANOTECHNOLOGY
B. Shankar Goud, Y. Dharmendar Reddy, Satyaranjan Mishra
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引用次数: 14

摘要

本文研究了受辐射热能影响的磁纳米流体在可渗透介质中的热分层流动现象。此外,化学反应、粘性和焦耳耗散的行为丰富了流动剖面。利用相似变换将由偏微分方程组成的控制方程的嵌入式系统变形为非线性常方程。MATLAB软件用于实现数值方案,如龙格-库塔-费伯格方法学与射击法相结合。用图形表示了几种非量纲因素对流动现象的影响,并以表格形式给出了速率系数的模拟结果。所建立的结果是非常封闭的,并且与已发表的工作有很好的一致性。随着埃克特数的增大,摩擦加热使热边界层厚度增大。杜福尔数的增加导致温度剖面的降低。相反,浓度的升高会导致索莱特数的升高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Joule heating and thermal radiation impact on MHD boundary layer Nanofluid flow along an exponentially stretching surface with thermal stratified medium
The current investigation leads to the characterisation of the flow phenomena of hydromagnetic nanofluid thermal stratified through permeable medium due to the influence of the radiative heat energy. Additionally, the behaviour of chemical reaction, viscous as well as Joule dissipations enriches the flow profiles. The embedded system for the governing equation comprised of partial differential equations is distorted to nonlinear ordinary with the help of the similarity transformations. MATLAB software is used to implement numerical schemes such as the Runge-Kutta-Fehlberg methodology in conjunction with the shooting method. The effects of several non-dimensional factors on flow phenomena are shown graphically, and the simulated results for the rate coefficients are presented in tabular form. The results established are extremely closed and excellent concurrence with published work. The thermal boundary surface thickness is enhanced due to frictional heating with rising values of Eckert number. A rise in Dufour number leads to a reduction in temperature profile. In contrast, a rise in concentration leads to higher values of the Soret number.
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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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