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尘埃粒子、纳米粒子半径、科里奥利力和洛伦兹力的意义：以麦克斯韦尘埃流体为例

Significance of Dust Particles, Nanoparticles Radius, Coriolis and Lorentz Forces: The Case of Maxwell Dusty Fluid.

作者信息

Wei Yanming, Rehman Saif Ur, Fatima Nageen, Ali Bagh, Ali Liaqat, Chung Jae Dong, Shah Nehad Ali

机构信息

School of Science, Xijing University, Xi'an 710123, China.

Department of Mathematics, University of Management and Technology, Lahore 54770, Pakistan.

出版信息

Nanomaterials (Basel). 2022 Apr 29;12(9):1512. doi: 10.3390/nano12091512.

DOI:10.3390/nano12091512
PMID:35564220
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9102270/
Abstract

This study aimed to analyze the momentum and thermal transport of a rotating dusty Maxwell nanofluid flow on a magnetohydrodynamic Darcy-Forchheimer porous medium with conducting dust particles. Nanouids are the most important source of effective heat source, having many applications in scientific and technological processes. The dust nanoparticles with superior thermal characteristics offer a wide range of uses in chemical and mechanical engineering eras and modern technology. In addition, nanofluid Cu-water is used as the heat-carrying fluid. The governing equations for the two phases model are partial differential equations later transmuted into ordinary ones via similarity transforms. An efficient code for the Runge-Kutta technique with a shooting tool is constructed in MATLAB script to obtain numeric results. The study is compared to previously published work and determined to be perfect. It is observed that the rising strength of the rotating and magnetic parameters cause to recede the - and -axis velocities in the two phase fluid, but the temperature function exhibits an opposite trend. By improving the diameter of nanoparticles Dm, the axial velocity improves while transverse velocity and temperature show the opposite behaviors. Furthermore, it is reported that the inclusion of dust particles or nanoparticles both cause to decline the primary and secondary velocities of fluid, and also dust particles decrease the temperature.

摘要

本研究旨在分析旋转含尘麦克斯韦纳米流体在具有导电尘埃颗粒的磁流体动力学达西 - 福希海默多孔介质上的动量和热传输。纳米流体是有效热源的最重要来源，在科学和技术过程中有许多应用。具有卓越热特性的尘埃纳米颗粒在化学和机械工程时代以及现代技术中有广泛用途。此外，纳米流体铜 - 水被用作载热流体。两相模型的控制方程是偏微分方程，随后通过相似变换转化为常微分方程。在MATLAB脚本中构建了带有打靶工具的龙格 - 库塔技术的高效代码以获得数值结果。该研究与先前发表的工作进行了比较，并被判定为完善。据观察，旋转和磁参数强度的增加导致两相流体中 - 轴和 - 轴速度减小，但温度函数呈现相反趋势。通过增大纳米颗粒直径Dm，轴向速度增加，而横向速度和温度呈现相反行为。此外，据报道，包含尘埃颗粒或纳米颗粒都会导致流体的一次和二次速度下降，并且尘埃颗粒会降低温度。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/71e1/9102270/201e699e8128/nanomaterials-12-01512-g010.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/71e1/9102270/b52c3f2c6a44/nanomaterials-12-01512-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/71e1/9102270/6b70c832bccd/nanomaterials-12-01512-g017.jpg
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