辐射 MHD 混合纳米流体流经拉伸片时布朗运动和热泳扩散的影响

IF 2.3 4区 工程技术 Q2 ENGINEERING, MECHANICAL
Humaira Gul, Muhammad Ayaz, Saeed Islam, Asad Ullah, Emad A. A. Ismail, Fuad A. Awwad
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引用次数: 0

摘要

文章旨在分析热泳运动和布朗运动对流经双向延伸薄片的稳定三维磁流体动力学的影响。我们假设水基铜铝纳米颗粒悬浮液受到旋转效应、非线性化学反应、热辐射、粘性耗散和热源的影响。借助基本方程对流场进行建模。此外,该问题被简化为具有相似变量的常微分方程(ODE)。用半解析法(同调分析法)求解简化的 ODE 系统。状态变量的结果通过各种相关参数的图表显示出来。热曲线随着布朗参数和热泳参数值的增加而下降,而浓度曲线则随着布朗参数值的增加而呈现相反的趋势。此外,滑移参数会降低热剖面和浓度剖面以及表面阻力。磁强度和孔隙度参数越高,沿两个方向的速度剖面都会下降。热源和辐射参数的数值越大,热剖面越明显。研究还发现,随着拉伸比系数的增加,轴向速度和横向速度的趋势相反。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of the Brownian motion and thermophoretic diffusion during the radiative MHD hybrid nanofluid flow past a stretching sheet
The article aims to analyze the effects of thermophoretic and Brownian motion on steady three-dimensional magnetohydrodynamics with fully developed natural convective hybrid nanofluid flow past a bidirectionally extending sheet. We assumed the water-based copper and aluminum nanoparticles suspension under the influence of the rotational effect, nonlinear chemical reaction, thermal radiations, viscous dissipation, and heat source. The flow field is modeled with the help of the basic equations. Furthermore, the problem is reduced to ordinary differential equations (ODEs) with the similarity variables. The reduced system of ODEs is solved with the semianalytical method (homotopy analysis method). The results for the state variables are displayed through graphs tables for various pertinent parameters. The thermal profile falls with the higher values of the Brownian and thermophoresis parameters, while the concentration profile shows an opposite trend with the increasing values of the Brownian parameter. Also, the slip parameter decreases both the thermal and concentration profiles as well as the surface drag. The velocity profiles along both directions fall with the higher magnetic strength and porosity parameters. The heat source and radiations parameter enhances the thermal profile with increasing values. The study also recommends the opposite trends for the axial and transverse velocities with increasing value of the stretching ratio factor. The proposed method convergence is present through [Formula: see text] curves for the regions [Formula: see text] [Formula: see text] [Formula: see text] and [Formula: see text] The skin friction and Nusselt number are displayed through tables numerically for various values of volume fraction and other important parameters.
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来源期刊
CiteScore
3.80
自引率
16.70%
发文量
370
审稿时长
6 months
期刊介绍: The Journal of Process Mechanical Engineering publishes high-quality, peer-reviewed papers covering a broad area of mechanical engineering activities associated with the design and operation of process equipment.
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