Yasmin Humaira, Alshehry Azzh Saad, Ghanie Abdul Hamid, Shah Rasool
Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, 31982, Al-Ahsa, Saudi Arabia.
Department of Mathematical Sciences, Faculty of Sciences, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Sci Rep. 2023 Oct 18;13(1):17760. doi: 10.1038/s41598-023-44640-3.
Nanomaterials have found wide applications in many fields, leading to significant interest in the scientific world, in particular automobile thermal control, heat reservoirs, freezers, hybrid control machines, paper creation, cooling organisms, etc. The aim of the present study is to investigate the MHD non-Newtonian nanofluid and time-based stability analysis to verify the stable branch by computing the smallest eigenvalue across a slendering, extending, or shrinking sheet with thermal radiation and chemical reactions. The basic flow equations have been obtained in terms of PDEs, which are then converted to ODEs in dimensionless form via a suitable transformation. Based on the MATLAB software package bvp4c, the numerical solution has been obtained for the system of equations. A comparative study of the present and published work is impressive. The influence of evolving factors such as Prandtl number, Schmidt number, magnetic factor, heat generation/absorption, thermal, thermophoresis factor, chemical factor, second-grade fluid factor, and Brownian number on the velocities, energy, and concentration patterns is discussed through graphs. It is perceived that the temperature distribution enriches owing to the greater magnitude of the heat source. Furthermore, it is observed that a greater magnitude of radiation improves the temperature curves. It is also investigated from the present analysis that concentration and temperature profiles increase due to the growing values of the thermophoresis factor.
纳米材料在许多领域都有广泛应用,引起了科学界的极大兴趣,特别是在汽车热控、蓄热器、冷冻机、混合控制机器、纸张制造、冷却生物体等方面。本研究的目的是研究磁流体动力学非牛顿纳米流体和基于时间的稳定性分析,通过计算具有热辐射和化学反应的细长、伸展或收缩薄板上的最小特征值来验证稳定分支。基本流动方程已用偏微分方程表示,然后通过适当的变换转化为无量纲形式的常微分方程。基于MATLAB软件包bvp4c,获得了方程组的数值解。对本研究与已发表工作的对比研究令人印象深刻。通过图表讨论了诸如普朗特数、施密特数、磁因子、热生成/吸收、热、热泳因子、化学因子、二级流体因子和布朗数等不断变化的因素对速度、能量和浓度分布的影响。可以看出,由于热源的幅度较大,温度分布更加丰富。此外,观察到较大幅度的辐射改善了温度曲线。从本分析中还可以看出,由于热泳因子值的增加,浓度和温度分布也会增加。