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首页> 外文期刊>Heat transfer >Magnetohydrodynamic mixed convective peristaltic slip transport of carbon nanotubes dispersed in water through an inclined channel with Joule heating
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Magnetohydrodynamic mixed convective peristaltic slip transport of carbon nanotubes dispersed in water through an inclined channel with Joule heating

机译：磁性动力学混合对流的蠕动滑移渗透运输在水中分散在水中的圆形沟道，焦耳加热

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摘要

Carbon nanotubes are considered to be the latest nanotechnology innovation because of their remarkable physical and mechanical properties. Recently, researchers have shown great interest in the peristaltic transport of nanotube-based nanofluid as this process involves a wide range of uses in the bioen-gineering, biomechanics, and medical fields. In this investigation, influence of single-walled carbon nanotubes (SWCNTs) on magnetohydrodynamic mixed convective peristalsis through an inclined and asymmetric channel is analyzed. The additional physical mechanisms such as velocity slip, viscous dissipation, thermal slip, Joule heating, and heat consumption/injection are also encountered. The principal equations are formulated under the estimation of long wavelength and low Reynolds number. Perturbation method is operated to evaluate the solutions of subsequent nonlinear system of equations for small Brinkman number. To deeply analyze the characteristics of embedded parameters, graphs are presented and comprehensive interpretation is provided. Rate of heat transfer is augmented for higher proportion of SWCNTs in base fluid water. At the center of channel, increasing volume fraction of SWCNTs and strong Lorentz force retard the motion of fluid while flow is accelerated in more inclined channel. Volume fraction of SWCNTs, Grashof number, and inclination parameter encourage the pressure gradient at wider part of the channel. The size of bolus is contracted by strong Lorentz force and large volume fraction of SWCNTs. Three basic models named as Maxwell's, Hamilton-Crosser's, and Xue's model are utilized to forecast the thermal conductivity of nanofluid and succeeding numerical computations for heat transfer rate are presented through table. It is found that the Xue's model is most effective to anticipate the thermal conductivity of nanofluids. Moreover, the addition of a heat sink in the system significantly influences the heat transfer process and plays a supportive role to rapidly cool down the channel.
机译：由于其出色的物理和机械性能，碳纳米管被认为是最新的纳米技术创新。最近，研究人员对基于纳米管的纳米流体的蠕动传输令人兴趣，因为该过程涉及生物危险，生物力学和医学领域的广泛用途。在该研究中，分析了通过倾斜和不对称通道对磁性流动混合的对流蠕动的影响。还遇到了额外的物理机制，例如速度滑移，粘性耗散，热滑移，焦耳加热和热消耗/注射。在长波长和低雷诺数的估计下配制主要方程。操作扰动方法以评估小Brinkman号的后续非线性系统的解。为了深入分析嵌入式参数的特征，提出了图形，并提供了全面的解释。热传递速率增强为基础流体水中的高比例的SWCNT。在通道的中心，增加SWCNT的体积分数和强洛伦兹力延迟了流体的运动，而流动在更倾斜的通道中加速。 SWCNT的体积分数，GRASHOF编号和倾斜参数鼓励在通道的更广泛的部分中的压力梯度。推注的大小由强烈的洛伦兹力和SWCNT的大容量分数收缩。利用三个基本型号名为Maxwell，Hamilton-Crosser的和Xue模型来预测纳米流体的导热率，并通过表呈现出用于传热速率的后续数值计算。结果发现，薛的模型最有效地预期纳米流体的导热系数。此外，在系统中添加散热器显着影响传热过程，并在迅速降低通道中发挥支持性作用。

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  • 来源
    《Heat transfer》 |2021年第3期|2064-2089|共26页
  • 作者

    Talha Anwar; Muhammad Tahir; Poom Kumam; Saleem Ahmed; Phatiphat Thounthong;

  • 作者单位

    Department of Mathematics Faculty of Science King Mongkut's University of Technology Thonburi Bangkok Thailand;

    Department of Mathematics COMSATS University Islamabad Park Road Tarlai Kalan Islamabad Pakistan;

    Center of Excellence in Theoretical and Computational Science (TaCS-CoE) King Mongkut's University of Technology Thonburi (KMUTT) Bangkok Thailand KMUTT-Fixed Point Theory and Applications Research Group Theoretical and Computational Science Center (TaCS) Science Laboratory Building Faculty of Science King Mongkut's University of Technology Thonburi (KMUTT) Bangkok Thailand KMUTT Fixed Point Research Laboratory SCL 802 Fixed Point Laboratory Science Laboratory Building King Mongkut's University of Technology Thonburi Bangkok Thailand;

    Department of General Engineering College of Engineering University of Buraimi Al Buraimi Oman;

    Renewable Energy Research Centre Department of Teacher Training in Electrical Engineering Faculty of Technical Education King Mongkut's University of Technology North Bangkok Bangkok Thailand;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    asymmetric inclined channel; MHD; nanotubes; peristalsis; slip effects;

    机译：不对称倾斜通道;MHD;纳米管;Peristalsis;滑动效果;

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