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Nanofluid flow and forced convection heat transfer due to Lorentz forces in a porous lid driven cubic enclosure with hot obstacle

机译:由于洛伦兹力,在带有热障碍物的多孔盖驱动的立方外壳中,纳米流体流动和强制对流换热

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摘要

Lattice Boltzmann Method (LBM) is utilized to simulate the magnetohydrodynamic (MHD) nanofluid forced convective heat transfer inside a porous three dimensional enclosure with hot cubic obstacle. Impact of Hartmann number (Ha), Darcy number (Da) and Reynolds number (Re) on nanofluid treatment were depicted. Al2O3-H2O nanofluid has been utilized considering single phase model. Results are demonstrated in forms of isokinetic, isotherms, streamlines, Nusselt number and velocity contours. Results show that temperature boundary layer becomes thinner with augment of Da and Re. Convective heat transfer reduces with rise of Hartmann number while it improves with rise of Darcy number. (C) 2018 Elsevier B.V. All rights reserved.
机译:格子玻尔兹曼方法(LBM)用于模拟磁热流体(MHD)纳米流体强迫对流换热在带有热立方障碍的多孔三维外壳内。描述了哈特曼数(Ha),达西数(Da)和雷诺数(Re)对纳米流体处理的影响。考虑到单相模型,已经使用了Al2O3-H2O纳米流体。结果以等速,等温线,流线,努塞尔数和速度等高线的形式证明。结果表明,随着Da和Re的增加,温度边界层变薄。对流换热随着哈特曼数的增加而减少,而随着达西数的增加而改善。 (C)2018 Elsevier B.V.保留所有权利。

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