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A lattice Boltzmann model for axisymmetric thermal flows through porous media

机译:多孔介质轴对称热流的格子Boltzmann模型

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摘要

In this paper, a new lattice Boltzmann model at representative elementary volume (REV) scale is proposed for axisymmetric thermal flows in porous media. In this model, a new equilibrium distribution function including porosity is proposed to describe the cases of variable porosity, and simple force term is adopted to achieve a better numerical stability. The numerical experiments, including five benchmark problems, demonstrate that the proposed LBM can be served as a feasible and efficient method for axisymmetric thermal flows through porous media.
机译:本文针对多孔介质中的轴对称热流,提出了一种新的具有代表性基本体积(REV)尺度的格子Boltzmann模型。在该模型中,提出了一种新的包括孔隙度的平衡分布函数来描述孔隙度变化的情况,并采用简单的力项来获得更好的数值稳定性。包括五个基准问题在内的数值实验表明,所提出的LBM可以作为一种可行且有效的方法,用于通过多孔介质的轴对称热流。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2010年第24期|p.5519-5527|共9页
  • 作者单位

    State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China;

    rnState Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China;

    School of Mathematics and Statistics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China;

    rnSchool of Mathematics and Statistics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of 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

    lattice boltzmann; axisymmetric flow; heat transfer; porous media;

    机译:格博尔兹曼轴对称流传播热量;多孔介质;

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