摘要
多孔介质渗流研究是否能真实反映多孔介质区域内流动过程,关键在于能否较真实描述多孔介质复杂孔隙通道结构。本文采用可控参数的Sierpinski模型进行分形多孔介质模型重构,在此基础上对分形多孔介质渗流特性与分形几何特征参数之间的关系进行数值模拟分析,研究结果表明,分形多孔介质模型满足严格自相似性,并随着分形级数增加,颗粒数增加,孔隙通道更加复杂,孔隙率逐渐减小,渗透率明显下降。
Whether the study of porous media seepage can truly reflect the flow process in porous media area depends on whether the complex pore channel structure of porous media can be described more truly.In this paper,the Sierpinski model with controllable parameters is used to reconstruct the fractal porous media model.On this basis,the relationship between the seepage characteristics of fractal porous media and the fractal geometric characteristic parameters is analyzed by numerical simulation.The results show that the fractal porous media model satisfies the strict self similarity,and with the increase of fractal series,the pore channel becomes more complex and the porosity decreases gradually The permeability decreased obviously.
作者
徐玉莹
陆欣
Xu Yuying;Lu Xin(School of Energy and Power Engineering,Nanjing University of Technology,Nanjing Jiangsu 210094,China)
出处
《科技通报》
2021年第6期1-6,共6页
Bulletin of Science and Technology
