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Analytical solution of forced convective heat transfer in tubes partially filled with metallic foam using the two-equation model

机译:使用两方程模型的局部填充金属泡沫的管中强制对流换热的解析解

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摘要

In this study, an analytical solution for fully developed forced convection in a tube partially filled with open-celled metallic foams is presented. In the foam region, the Brinkman flow model is used to describe the fluid transport, and the local thermal non-equilibrium model is adopted to represent the fluid-solid energy exchange. At the foam-fluid interface, interfacial coupling conditions for temperature are proposed and used to derive the analytical solution. Velocity and temperature profiles are derived from this solution, and explicit expressions for the friction factor and the Nusselt number are obtained. A parametric study is conducted to study the influences of various factors on flow resistance and heat transfer performance. The present analytical solution establishes a benchmark for similar work hereafter.
机译:在这项研究中,提出了一种用于在部分充满开孔金属泡沫的管中充分发展的强制对流的分析解决方案。在泡沫区域,采用布林克曼流动模型描述了流体的运移,采用局部热非平衡模型来表示流体-固体的能量交换。在泡沫-流体界面上,提出了温度的界面耦合条件,并将其用于导出解析解。从该解中得出速度和温度曲线,并获得了摩擦因数和Nusselt数的明确表达式。进行了参数研究,以研究各种因素对流动阻力和传热性能的影响。本分析解决方案为以后的类似工作建立了基准。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2011年第18期|p.3846-3855|共10页
  • 作者

    H.J. Xu; Z.G. Qu; W.Q Tao;

  • 作者单位

    MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

    MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

    MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

  • 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

    analytical solution; local thermal non-equilibrium; metallic foams;

    机译:分析溶液;局部热不平衡;金属泡沫;

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