非线性辐射磁流体动力学混合纳米流体流过多孔介质中拉伸圆柱体的数值研究

IF 2.7 Q3 NANOSCIENCE & NANOTECHNOLOGY
M. Ismail, David Maxim Gururaj
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引用次数: 1

摘要

这项工作的目的是研究热辐射对浸入多孔介质中的拉伸圆柱体上MHD混合纳米流体流动的影响。给出了物理问题的数学模型,并利用相似变换将得到的控制方程转化为非线性常微分方程组,并利用MATLAB软件采用四阶龙格-库塔法结合射击法对其进行数值求解。通过图表解释了体积分数、孔隙率参数、Forchheimer数、磁场、壁温参数和辐射因子对混合纳米流体流动的物理影响。此外,还讨论了工程流体的表面摩擦和传热速率。此外,目前的工作与以往的研究非常一致。观察到,Cu的体积浓度逐渐主导流场,导致表面摩擦和传热速率降低。此外,还发现Darcy数和Farchheimer数的增加提高了表面摩擦系数和传热率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Numerical Investigation on Nonlinear Radiative Magneto Hydrodynamics Hybrid Nanofluid Flow Past a Stretching Cylinder Embedded in Porous Medium
The goal of this work is to investigate the effects of thermal radiation on MHD hybrid nanofluid flow over a stretching cylinder immersed in a porous medium. The mathematical model of the physical problem is provided and the resulting governing equations are transformed into the system of non-linear ordinary differential equations using similarity transformation and it is solved numerically by the fourth-order Runge Kutta method combined with the shooting approach using the MATLAB software. The physical impacts of volume fraction, porosity parameter, Forchheimer number, magnetic field, wall temperature parameter, and radiation factor on the hybrid nanofluid flow are interpreted by graphs and tables. Moreover, the skin friction and heat transfer rate of the engineered fluid are discussed. In addition, the current work is in good accord with past studies. It is observed that the volume concentration of Cu gradually dominates the flow field, causing the skin friction and heat transfer rate to be reduced. Also, it is found that the skin friction coefficient and heat transfer rate are enhanced by the increase in Darcy and Farchheimer numbers.
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来源期刊
Journal of Nanofluids
Journal of Nanofluids NANOSCIENCE & NANOTECHNOLOGY-
自引率
14.60%
发文量
89
期刊介绍: Journal of Nanofluids (JON) is an international multidisciplinary peer-reviewed journal covering a wide range of research topics in the field of nanofluids and fluid science. It is an ideal and unique reference source for scientists and engineers working in this important and emerging research field of science, engineering and technology. The journal publishes full research papers, review articles with author''s photo and short biography, and communications of important new findings encompassing the fundamental and applied research in all aspects of science and engineering of nanofluids and fluid science related developing technologies.
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