Algehyne Ebrahem A, El-Zahar Essam R, Elhag S H, Bayones Fatimah S, Nazir Umar, Sohail Muhammad, Kumam Poom
Department of Mathematics, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk, 71491, Saudi Arabia.
Nanotechnology Research Unit (NRU), University of Tabuk, Tabuk, 71491, Saudi Arabia.
Sci Rep. 2022 Feb 11;12(1):2335. doi: 10.1038/s41598-022-06213-8.
The study of thermo-physical characteristics is essential to observe the impact of several influential parameters on temperature and velocity fields. The transportation of heat in fluid flows and thermal instability/stability is a charming area of research due to their wider applications and physical significance because of their utilization in different engineering systems. This report is prepared to study thermal transportation in Maxwell hybrid nanofluid past over an infinite stretchable vertical porous sheet. An inclusion of hybrid nanofluid is performed to monitor the aspects of thermal transportation. Keeping in mind the advantages of thermal failure, non-Fourier theory for heat flux model is utilized. Aspects of external heat source are also considered. The mathematical formulation for the considered model with certain important physical aspects results in the form of coupled nonlinear PDEs system. The obtained system is reduced by engaging boundary layer approximation. Afterwards, transformations have been utilized to convert the modeled PDEs system into ODEs system. The converted nonlinear ODEs system is then handled via finite element method coded in symbolic computational package MAPLE 18.0. Grid independent survey is presented for the validation of used approach and the comparative analysis has been done to confirm the reliability of obtained solution. The obtained solution is discussed and physical aspects have been explored and recorded against numerous involved influential variables. Motion into hybrid nanoparticles and nanoparticles becomes slow down versus higher values of Forchheimer and Darcy's porous numbers. Thermal growth is enhanced for the case of hybrid nano-structures rather than for case of nanofluid. Thickness regarding momentum layer is dominated for hybrid nanoparticles rather than case of nanoparticles.
热物理特性的研究对于观察几个影响参数对温度和速度场的影响至关重要。由于流体流动中的热传输以及热不稳定性/稳定性在不同工程系统中的广泛应用和物理意义,它们是一个引人入胜的研究领域。本报告旨在研究麦克斯韦混合纳米流体在无限大拉伸垂直多孔板上的热传输。引入混合纳米流体以监测热传输的各个方面。考虑到热失效的优势,采用了非傅里叶热通量模型理论。还考虑了外部热源的影响。考虑到某些重要物理方面的所考虑模型的数学公式导致了耦合非线性偏微分方程组的形式。通过采用边界层近似对所得系统进行简化。之后,利用变换将建模的偏微分方程组转换为常微分方程组。然后通过符号计算软件包MAPLE 18.0中编码的有限元方法处理转换后的非线性常微分方程组。给出了网格无关性研究以验证所采用方法的有效性,并进行了对比分析以确认所得解的可靠性。对所得解进行了讨论,并针对众多相关影响变量探讨并记录了物理方面的情况。与较高的福希海默数和达西多孔数相比,混合纳米颗粒和纳米颗粒中的运动变慢。与纳米流体的情况相比,混合纳米结构的情况下热增长增强。混合纳米颗粒的动量层厚度比纳米颗粒的情况更占主导。