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首页> 外文期刊>International Journal of Heat and Mass Transfer >Lattice Boltzmann method based study of the heat transfer augmentation associated with Cu/water nanofluid in a channel with surface mounted blocks
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Lattice Boltzmann method based study of the heat transfer augmentation associated with Cu/water nanofluid in a channel with surface mounted blocks

机译：基于晶格玻尔兹曼方法的研究与表面安装块的通道中与铜/水纳米流体相关的传热增强

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摘要

The study of the forced convection in a channel has many practical applications. In this paper, the forced convection heat transfer from surface mounted blocks attached to the bottom wall of a horizontal channel with nanofluid is numerically studied by the second-order lattice Boltzmann method (LBM). The effects of Reynolds numbers and geometrical parameters of the blocks in different aspect ratios on the flow field and temperature distribution for various volume fractions of nanofluid (φ = 0, 0.01, 0.03 and 0.05) are analyzed. Also, the influence of these parameters is investigated on the local and average Nusselt numbers. It is concluded that heat transfer in channels can be enhanced by using the block on the walls and adding nanopartides. There is a maximum value of 39.04% increase in average heat transfer coefficient for all the examined cases compared to the base fluid (i.e., water).
机译：通道中强制对流的研究有许多实际应用。在本文中，通过二阶晶格玻尔兹曼方法（LBM）数值研究了附着在带有纳米流体的水平通道底壁上的表面贴装块的强制对流换热。分析了不同纵横比的块的雷诺数和几何参数对纳米流体的各种体积分数（φ= 0、0.01、0.03和0.05）的流场和温度分布的影响。此外，还研究了这些参数对局部和平均Nusselt数的影响。结论是，通过使用壁上的块并添加纳米粒子，可以增强通道中的传热。与基础流体（即水）相比，所有检查情况下的平均传热系数都有最大值增加39.04％。

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  • 作者

    Rasul Mohebbi; Hassan Lakzayi; Nor Azwadi Che Sidik; Wan Mohd Arif Aziz Japar;

  • 作者单位

    School of Engineering, Damghan University, Damghan 3671641167, Iran;

    School of Engineering, Damghan University, Damghan 3671641167, Iran;

    Malaysia -Japan International Institute of Technology (MJIIT), University Teknologi Malaysia Kuala Lumpur, Jalan Sultan YahyaPetra (Jalan Semarak), 54100 Kuala Lumpur, Malaysia;

    Malaysia -Japan International Institute of Technology (MJIIT), University Teknologi Malaysia Kuala Lumpur, Jalan Sultan YahyaPetra (Jalan Semarak), 54100 Kuala Lumpur, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    LBM; Nanofluid; Forced convection; Block; Channel;

    机译：LBM;纳米流体强制对流;块;渠道;

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