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首页> 外文期刊>Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems >Lattice Boltzmann analysis of MHD natural convection of CuO-water nanofluid in inclined C-shaped enclosures under the effect of nanoparticles Brownian motion
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Lattice Boltzmann analysis of MHD natural convection of CuO-water nanofluid in inclined C-shaped enclosures under the effect of nanoparticles Brownian motion

机译：纳米颗粒褐色运动作用下倾斜C形外壳CuO水纳米流体MHD自然对流的晶格Boltzmann分析

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In this study, Magneto-Hydro-Dynamic (MHD) natural convection heat transfer has been analyzed for an inclined C-shaped cavity filled with nanofluid. The Lattice Boltzmann Method (LBM) is used to solve the governing equations. The effective thermal conductivity and viscosity of nanofluid are calculated by KKL (Koo-KleinstreuerLi) correlation. The influence of pertinent parameters such as Rayleigh number, Hartmann number, the cavity inclination angle, nanoparticle volume concentration and the cavity aspect ratio on the flow and heat transfer characteristics have been examined. From this work, it is found that the heat transfer enhances when considering the Brownian motion effect of nanopartides, whereas presence of magnetic field tries to retard convection. Moreover, the numerical results demonstrate that the average Nusselt is increased when increasing cavity aspect ratio, cavity angle and volume fraction of nanofluid. Also, the results demonstrate that the enclosure with an inclination angle of gamma = pi/2, has the maximum heat transfer coefficient. (C) 2016 Published by Elsevier B.V.
机译：在该研究中，已经分析了磁力 - 流动态（MHD）天然对流热传递，用于填充有纳米流体的倾斜的C形腔。晶格Boltzmann方法（LBM）用于解决控制方程。纳米流体的有效导热率和粘度通过KKL（Koo-Kleinstreuerli）相关来计算。已经研究了瑞利数，Hartmann号，腔倾斜角，纳米粒子体积浓度和腔谱比的相关参数的影响，已经进行了流动和传热特性。从这项工作来看，发现热传递在考虑纳米粒子的布朗运动效果时增强，而存在磁场试图延迟对流。此外，数值结果表明，当增加腔纵横比，腔体角度和纳米流体的体积分数时，增加了平均纽带。而且，结果表明，具有伽马= PI / 2的倾斜角的外壳具有最大的传热系数。 （c）2016年由Elsevier B.V发布。

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