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中文摘要：
多孔介质内的流动问题在工程热物理领域有着重要的研究价值和应用背景。本文利用多松弛格子Boltzmann方法详细预测了两种二维多孔介质中的渗透率。研究结果表明：一方面,多松弛模型可以用来克服由单松弛模型带来的一些不足;另一方面,借助于达西定律,多松弛模型可以准确预测多孔介质的渗透率,并将计算结果与已有文献做了对比。
英文摘要：
The problems of fluid flow in porous media have an important researchful value and many applications to engineering thermophysics.In this paper,the multi-relaxation-time lattice Boltzmann method is used to predict permeability of two kinds of two-dimensional porous media.The results show that,on one hand,some shortcomings of single-relaxation-time model can be overcome by multi-relaxation-time model,and on the other hand,with aid of Darcy＇s law,the permeability of porous media can be predicted correctly by multi-relaxation-time model.The numerical results are compared with some available works.
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