非对称微通道中焦耳热和辐射热作用下导电纳米流体的蠕动流动

S. Mohanty, B. Mohanty, Satyaranjan Mishra
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引用次数: 1

摘要

所提出的数学模型是基于导电纳米流体在不对称微通道内的蠕动流动。流动是在耗散热能的作用下发生的,由于磁场的存在,基本上被称为焦耳加热和辐射热,即热辐射,伴随着额外的热源。此外,利用泊松-玻尔兹曼方程和Debey长度近似给出了上下壁zeta电位的影响和电势的表达式。对于具有适当边界条件的扭曲控制方程,采用了众所周知的数值方法。此外,还计算了相关物理参数的压力梯度。图表显示了流动问题中相关参数的特征,表格结果表示速率系数的模拟值。在显著性检验中,研究发现,由于电场的发生而引起的迁移率参数vis-à-vis时间参数促进了通道中心内的速度分布,并且在靠近壁面区域出现了明显的延迟。
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Peristaltic flow of electrically conducting nanofluid under the action of Joule and radiative heat within an asymmetric microchannel
The proposed mathematical model is based upon the peristaltic flow of an electrical conducting nanofluid within an asymmetric microchannel. The flow takes place under the action of dissipative heat energy due to the occurrence of the magnetic field that is basically known as Joule heating and radiative heat proposed as thermal radiation along with the additional heat source. Moreover, the impact of upper/lower wall zeta potential and the expression for the electric potential is presented using the Poisson Boltzmann equation and Debey length approximation. The well-known numerical practice is used for distorted governing equations with appropriate boundary conditions. Further, computation of the pressure gradient is obtained for the associated physical parameters. The graphical illustration shows the characteristics of the pertinent parameters on the flow problem and the tabular result represents the simulated values for the rate coefficients. In the significant examination, the study reveals that the mobility parameter due to the occurrence of the electric field vis-à-vis time parameter encourages the velocity distribution within the center of the channel furthermore significant retardation occurs near the wall region.
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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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