确定多孔介质流动参数的格子Boltzmann方法  

APPLICATION OF LATTICE-BOLTZMANN SCHEME ON DETERMINING FLOW PARAMETERS OF POROUS MEDIA

作　　者：钱吉裕[1] 李强[1] 宣益民[1] 余凯[1] 

机构地区：[1]南京理工大学动力工程学院,江苏南京210094

出　　处：《工程热物理学报》2004年第4期655-657,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50306007)

摘　　要：本文采用D2Q9不可压缩Lattice-Boltzmann模型模拟了多孔介质中的流场,该模型从介观层次上描述了多孔介质孔隙中的流动特性,验证了Darcy定律,给出了一种计算渗透率的简便方法,本文还运用图像处理方法来构造多孔介质,该方法构造的二维多孔介质能较好地体现实际多孔介质的几何特征。In this paper, a D2Q9 impressible Lattice-Boltzmann flow model is established to simulate the flow performance in porous media. The permeability of porous media can be calculated using this model. Furthermore the Darcy law is validated. A novel technique for generating porous media is developed using image process. With this method a porous media can be constructed conveniently which is in good agreement with realistic one.

关 键 词：多孔介质 Lattice-Boltzmann模型 渗透率 Darcy定律 

分 类 号：TH834[机械工程—仪器科学与技术]