磁场对两根具有产热/吸热的同心微管间混合对流流动的作用:精确解

IF 4.2 Q2 NANOSCIENCE & NANOTECHNOLOGY Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2018-05-28 DOI:10.1177/2397791418776520

B. Jha, M. Oni

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引用次数: 10

摘要

本文研究了磁场对垂直微同心环空中生热/吸热流体充分发展的混合对流流动的作用，并考察了圆柱表面的速度滑移和温度跳变。分别用第一类贝塞尔函数和第二类修正贝塞尔函数求得了动量方程和能量方程的精确解。用图形表示了得到的解，并详细研究了相关参数对流动形成和摩擦的影响。结果表明，磁场的作用是降低流体速度和内缸外表面的摩擦。此外，可以通过增加磁场强度来控制逆流的形成。

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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Role of magnetic field on mixed convective flow between two concentric microtubes with heat generation/absorption: An exact solution

This study examines the role of magnetic field on fully developed mixed convection flow of heat generating/absorbing fluid in a vertical micro-concentric annulus with velocity slip and temperature jump at the surfaces of the cylinders. Exact solution of momentum and energy equations are obtained separately in terms of Bessel’s function and modified Bessel’s function of first and second kind. The solutions obtained are graphically represented and the effects of pertinent parameters on flow formation and skin-friction are investigated in details. Results show that the role of magnetic field is to decrease fluid velocity as well as skin-friction at the outer surface of inner cylinder. In addition, reverse flow formation can be controlled by increasing magnetic field strength.

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来源期刊

Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

6.00

自引率

1.70%

发文量

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.