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多孔材料中具有焦耳热和高阶反应的三维电磁辐射非牛顿纳米流体流动

3-D electromagnetic radiative non-Newtonian nanofluid flow with Joule heating and higher-order reactions in porous materials.

作者信息

Alaidrous Amel A, Eid Mohamed R

机构信息

Department of Mathematics, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, 21955, Saudi Arabia.

Department of Mathematics, Faculty of Science, New Valley University, Al-Kharga, Al-Wadi Al-Gadid, 72511, Egypt.

出版信息

Sci Rep. 2020 Sep 3;10(1):14513. doi: 10.1038/s41598-020-71543-4.

DOI:10.1038/s41598-020-71543-4
PMID:32884033
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7471956/
Abstract

The aim of this work is to discuss the effect of mth-order reactions on the magnetic flow of hyperbolic tangent nanofluid through extending surface in a porous material with thermal radiation, several slips, Joule heating, and viscous dissipation. In order to convert non-linear partial differential governing equations into ordinary ones, a technique of similarity transformations has been implemented and then solved using the OHAM (optimal homotopy analytical method). The outcomes of novel effective parameters on the non-dimensional interesting physical quantities are established utilizing the tabular and pictorial outlines. After a comparison with previous literature studies, the results were finely compliant. The study explores that the reduced Nusselt number is diminished for the escalating values of radiation, porosity, and source (sink) parameters. It is found that the order of the chemical reaction m = 2 is dominant in concentration as well as mass transfer in both destructive and generative reactions. When m reinforces for a destructive reaction, mass transfer is reduced with 34.7% and is stabled after η = 3. In the being of the destructive reaction and Joule heating, the nanofluid's temperature is enhanced.

摘要

这项工作的目的是讨论通过多孔材料中具有热辐射、多种滑移、焦耳热和粘性耗散的延伸表面，m阶反应对双曲正切纳米流体磁流的影响。为了将非线性偏微分控制方程转化为常微分方程，采用了相似变换技术，然后使用OHAM（最优同伦分析法）求解。利用表格和图形轮廓确定了新的有效参数对无量纲有趣物理量的影响。与先前的文献研究进行比较后，结果吻合良好。研究发现，随着辐射、孔隙率和源（汇）参数值的增加，约化努塞尔数减小。发现在破坏性反应和生成性反应中，化学反应阶数m = 2在浓度和传质方面占主导地位。对于破坏性反应，当m增大时，传质降低34.7%，且在η = 3后趋于稳定。在存在破坏性反应和焦耳热的情况下，纳米流体的温度会升高。

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