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在生物活性混合器和化学反应的重要意义下,混合纳米流体化学反应射流的数值研究

Numerical investigation of chemically reacting jet flow of hybrid nanofluid under the significances of bio-active mixers and chemical reaction.

作者信息

Mishra Nidhish Kumar, Anwar Sadia, Kumam Poom, Seangwattana Thidaporn, Bilal Muhammad, Saeed Anwar

机构信息

Department of Basic Sciences, College of Science and Theoretical Studies, Saudi Electronic University, (Jeddah-M), Riyadh, 11673, Kingdom of Saudi Arabia.

Department of Mathematics, College of Arts and Sciences, Wadi Ad Dawasir (11991), Prince Sattam Bin Abdulaziz University, Al-Kharj, Kingdom of Saudi Arabia.

出版信息

Heliyon. 2023 Jun 26;9(7):e17678. doi: 10.1016/j.heliyon.2023.e17678. eCollection 2023 Jul.

Abstract

Jet flows are employed in a variety of applications. It can be found in daily life as well as in agriculture, for example, jet flow assists with irrigation and harvest protection. The current problem is related to the study of energy and mass transference on the hybrid nanoliquid flow with mixed convection effect due to the vertical stretching surface conveying the cobalt ferrite and titanium dioxide nanoparticles (NPs) with the base fluid water . Further, the role of the chemical reaction, heat source/sink, and activation energy are investigated. By exploiting the idea of the modified Buongiorno model, the thermophoretic and Brownian diffusivity effects have discoursed on the existing flow behavior. The existing mathematical problem is framed with the application of the nonlinear higher-order PDEs. Higher-order PDEs of the mathematical model are changed into highly nonlinear ODEs by using the concepts of suitable similarity transformations. The modified higher-order nonlinear ODEs are cracked by manipulating the bvp4c technique in MATLAB. The impacts of the numerous physical flow parameters on the velocity, energy, and concentration are computed in graphical forms. Key findings from the present problem revealed that the velocity of the nanoliquid and hybrid nanofluid decreased due to greater nanoparticles volume fraction. Furthermore, the heat transportation is greater for mixed convection and thermophoresis parameter.

摘要

射流应用于各种领域。它在日常生活以及农业中都能见到,例如,射流有助于灌溉和收获保护。当前的问题涉及到对具有混合对流效应的混合纳米流体流动中能量和质量传递的研究,该流动是由垂直拉伸表面输送钴铁氧体和二氧化钛纳米颗粒(NPs)与基流体水形成的。此外,还研究了化学反应、热源/热汇和活化能的作用。通过利用改进的布翁焦尔诺模型的思想,讨论了热泳和布朗扩散效应在现有流动行为上的影响。现有的数学问题是通过应用非线性高阶偏微分方程构建的。利用合适的相似变换概念,将数学模型的高阶偏微分方程转化为高度非线性常微分方程。通过在MATLAB中运用bvp4c技术求解改进后的高阶非线性常微分方程。以图形形式计算了众多物理流动参数对速度、能量和浓度的影响。当前问题的主要发现表明,由于纳米颗粒体积分数较大,纳米流体和混合纳米流体的速度降低。此外,混合对流和热泳参数的热传输更大。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c423/10351286/901a0698e777/gr1.jpg

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