具有速度和热滑移的拉伸片上的 Ree-Eyring 三元混合纳米流体的非达西生物对流:熵分析

IF 2.5 4区 工程技术 Q2 ENGINEERING, MECHANICAL
Hossam Nabwey, Waqar A. Khan, zeinab Abdelrahman, Ahmed M. Rashad, Miad Abu Hawsah
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引用次数: 0

摘要

本文通过考虑回转微生物和倾斜磁场,提出了非牛顿流体(Ree-Eyring 模型)对多孔介质拉伸片的数学模型。水中 Al_2 O_3、Ag 和 Ti O_2 的复合称为三元混合纳米流体(THNF),水中 Al_2 O_3、Ag 的复合关系称为混合纳米流体(HNF),水中 Al_2 O_3 的复合称为纳米流体(NF)。通过相似性转换,实施适当的转换将支配偏微分方程转换为耦合非线性常微分方程。利用适当的相似性变换将数学模型转换为 ODE。MATLAB 中的 bvp4c 函数用于解决常微分方程系统的边界值问题(BVP)。它是 MATLAB 边界值问题 (BVP) 求解器套件的一部分。借助图表分析了物理参数对无量纲变量和物理量的影响。结果表明,三元混合纳米流体以皮肤摩擦为代价提供了最高的传热率,并提供了最低的贝扬数和熵产生率。它们还降低了质量和微生物的传递率。此外,磁场、局部惯性、埃克特数和热滑移通过促进更有效的热传递来降低贝扬数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Non-Darcy Bioconvective Flow of the Ree-Eyring Ternary-Hybrid Nanofluid over a Stretching Sheet with Velocity and Thermal Slips: Entropy Analysis
The present paper proposes the mathematical model for non-Newtonian fluid (Ree-Eyring model) towards a stretched sheet with the porous medium by considering the gyrotactic microorganisms and the inclined magnetic field. The composite of Al_2 O_3,Ag,and Ti O_2 in water is called ternary-hybrid nanofluid (THNF), while the composite relation among Al_2 O_3,Ag in water is known as hybrid nanofluid (HNF), and Al_2 O_3 in water is the nanofluid (NF).The Buongiorno model is used inflow modeling to investigate thermophoresis and Brownian motion. The appropriate transformations are implemented to transform governing partial differential equations into coupled nonlinear ordinary differential equations by similarity transformation. The mathematical model is converted to ODEs using suitable similarity transformation. The bvp4c function in MATLAB is used to solve boundary value problems (BVPs) for systems of ordinary differential equations (ODEs). It is part of the MATLAB's Boundary Value Problems (BVP) solver suite. The effects of the physical parameters on the dimensionless variables and quantities of physical interest are analyzed with the aid of figures. It is demonstrated that ternary hybrid nanofluids provide the highest heat transfer rate at the cost of skin friction and offer the lowest Bejan number and entropy generation rates. They also reduce mass and microorganisms transfer rates. Furthermore, magnetic field, local inertia, Eckert number, and thermal slip reduce the Bejan number by promoting more efficient heat transfer.
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来源期刊
Journal of Porous Media
Journal of Porous Media 工程技术-工程:机械
CiteScore
3.50
自引率
8.70%
发文量
89
审稿时长
12.5 months
期刊介绍: The Journal of Porous Media publishes original full-length research articles (and technical notes) in a wide variety of areas related to porous media studies, such as mathematical modeling, numerical and experimental techniques, industrial and environmental heat and mass transfer, conduction, convection, radiation, particle transport and capillary effects, reactive flows, deformable porous media, biomedical applications, and mechanics of the porous substrate. Emphasis will be given to manuscripts that present novel findings pertinent to these areas. The journal will also consider publication of state-of-the-art reviews. Manuscripts applying known methods to previously solved problems or providing results in the absence of scientific motivation or application will not be accepted. Submitted articles should contribute to the understanding of specific scientific problems or to solution techniques that are useful in applications. Papers that link theory with computational practice to provide insight into the processes are welcome.
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