Bilal M, Asghar I, Ramzan M, Nisar K S, Aty A-H Abdel, Yahia I S, Ghazwani H A S
The University of Lahore, Gujrat Campus, Lahore, Gujrat, Pakistan.
Department of Computer Science, Bahria University, Islamabad, Pakistan.
Sci Rep. 2022 Mar 19;12(1):4771. doi: 10.1038/s41598-022-08672-5.
The main objective of the present study is to explore the effects of electromagnetohydrodynamics electroosmotic flow of hybrid nanofluid through circular cylindrical microchannels. An analysis of hybrid nanofluid consisting of four different nanomaterials i.e., single and multiwall carbon nanotubes, silver, and copper is carried out. Yamada-Ota model is employed for the single and multi wall carbon nanotubes, whereas, Xue model is used for the Silver and Copper hybrid nanofluid for specifying the thermal conductivity. The imposed pressure gradient, electromagnetic field and electroosmosis actuated the fluid flow. The flow of heat transfer and Nusselt number with the account of various effects of Joule heating and viscous dissipation under the circumstances of constant heat flux are discussed graphically. The governing system of equations is molded into a system of coupled, nonlinear ordinary differential equations. The shooting technique is used to extract the numerical solutions of the converted system of equations. Also, the outturn of different parameters like Hartman number, the strength of lateral direction electric field, EDL (electric double layer) electrokinetic width, Joule heating parameters on the temperature, and velocity are investigated. The conversion of simple fluid to hybrid nanofluid has greatly alteration in the present model. It has enhanced the thermal properties of fluid. It is also noted that [Formula: see text] based hybrid nanofluid has most influential impact on Nusselt number, temperature distribution and velocity of the fluid. This attempt is useful for the designing of effectual electromagnetic appliances and exquisite.
本研究的主要目的是探究混合纳米流体在圆柱形微通道中的电磁流体动力学电渗流效应。对由四种不同纳米材料，即单壁和多壁碳纳米管、银和铜组成的混合纳米流体进行了分析。山田 - 太田模型用于单壁和多壁碳纳米管，而薛模型用于银和铜混合纳米流体以确定热导率。外加压力梯度、电磁场和电渗作用驱动流体流动。在恒定热通量情况下，考虑焦耳热和粘性耗散的各种影响，以图形方式讨论了传热流动和努塞尔数。控制方程组被转化为一个耦合的非线性常微分方程组。采用打靶技术来求解转化后的方程组的数值解。此外，还研究了哈特曼数、横向电场强度、电双层（EDL）电动宽度、焦耳热参数等不同参数对温度和速度的影响。在本模型中，简单流体向混合纳米流体的转变有很大变化。它提高了流体的热性能。还注意到基于[公式：见原文]的混合纳米流体对流体的努塞尔数、温度分布和速度有最显著的影响。这一尝试对高效电磁装置的设计是有用且精妙的。
