Purpose

This study aims to present the consequences of activation energy and the chemical reactions on the unsteady MHD squeezing flow of an incompressible ternary hybrid nanofluid (THN) comprising magnetite (FE₃O₄), multiwalled carbon nano-tubes (MWCNT) and copper (Cu) along with water (H2O) as the base fluid. This investigation is performed within the framework of two moving parallel plates under the influence of magnetic field and viscous dissipation.

Design/methodology/approach

Due to the complementary benefits of nanoparticles, THN is used to augment the heat transmit fluid’s efficacy. The flow situation is expressed as a system of dimensionless, nonlinear partial differential equations, which are reduced to a set of nonlinear ordinary differential equations (ODEs) by suitable similarity substitutions. These transformed ODEs are then solved through a semianalytical technique called differential transform method (DTM). The effects of several changing physical parameters on the flow, temperature, concentration and the substantial measures of interest have been deliberated through graphs. This study verifies the reliability of the results by performing a comparison analysis with prior researches.

Findings

The enhanced activation energy results in improved concentration distribution and declined Sherwood number. Enhancement in chemical reaction parameter causes disparities in concentration of the ternary nanofluid. When the Hartmann number is zero, value of skin friction is high, but Nusselt and Sherwood numbers values are small. Rising nanoparticles concentrations correspond to a boost in overall thermal conductivity, causing reduced temperature profile.

Research limitations/implications

Due to its firm and simple nature, its implications are in various fields like chemical industry and medical industry for designing practical problems into mathematical models and experimental analysis.

Practical implications

Deployment of the squeezed flow of ternary nanofluid with activation energy has significant consideration in nuclear reactors, vehicles, manufacturing facilities and engineering environments.

Social implications

This study would be contributing significantly in the field of medical technology for treating cancer through hyperthermia treatment, and in industrial processes like water desalination and purification.

Originality/value

In this problem, a semianalytical approach called DTM is adopted to explore the consequences of activation energy and chemical reactions on the squeezing flow of ternary nanofluid.

中文翻译：

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MHD 双扩散对流挤压平行板之间的三元纳米流体流动，具有活化能和粘性耗散

 目的

本研究旨在介绍活化能和化学反应对不可压缩的三元杂化纳米流体 （THN） 不稳定 MHD 挤压流的影响，THN 由磁铁矿 （FE₃O₄）、多壁碳纳米管 （MWCNT） 和铜 （Cu） 以及水 （H2O） 作为基础流体。这项研究是在两个移动平行板的框架内进行的，受到磁场和粘性耗散的影响。

设计/方法/方法

由于纳米颗粒的互补优势，THN 用于增强导热液的功效。流动情况表示为无量纲非线性偏微分方程组，通过适当的相似性替换将其简化为一组非线性常微分方程 （ODE）。然后，通过一种称为微分变换法 （DTM） 的半分析技术来求解这些变换的 ODE。通过图表讨论了几个变化的物理参数对流量、温度、浓度和感兴趣的实质性测量的影响。本研究通过与先前研究的比较分析来验证结果的可靠性。

 发现

增强的活化能导致浓度分布改善并降低 Sherwood 数。化学反应参数的增强导致三元纳米流体浓度的差异。当 Hartmann 数为零时，皮肤摩擦值较高，但 Nusselt 和 Sherwood 数值较小。纳米颗粒浓度的升高对应于整体热导率的提高，从而导致温度分布降低。

研究局限性/影响

由于其坚固和简单的性质，它适用于化学工业和医疗工业等各个领域，用于将实际问题设计成数学模型和实验分析。

 实际意义

在核反应堆、车辆、制造设施和工程环境中，部署具有活化能的三元纳米流体的挤压流具有重要的考虑。

 社会影响

这项研究将在通过热疗治疗癌症的医疗技术领域以及海水淡化和净化等工业过程中做出重大贡献。

 原创性/价值

在这个问题中，采用了一种称为 DTM 的半分析方法来探索活化能和化学反应对三元纳米流体挤压流的影响。