Percolation in two-scale porous media

被引：11
|
作者：
Mourzenko, VV
Thovert, JF
Adler, PM
机构：
[1] PTM, LCD, F-86960 Futuroscope, France
[2] IPGP, F-75252 Paris 05, France
[3] EPFL, CH-1015 Lausanne, Switzerland
来源：
EUROPEAN PHYSICAL JOURNAL B | 2001年 / 19卷 / 01期
关键词：
D O I：
10.1007/s100510170351
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Two-scale porous media are generated by filtering a Gaussian random correlated field with a random correlated threshold field. The percolation threshold and the critical exponent nu are derived with the help of a finite-size scaling method. The percolation threshold for the three-dimensional media is a decreasing function of the variance and correlation length of the threshold field. A simplified model predicts these trends in 3d; moreover, it suggested some effects in 2d which were all numerically verified.
引用
收藏
页码：75 / 85
页数：11
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