中国物理B ›› 2001, Vol. 10 ›› Issue (2): 128-133.doi: 10.1088/1009-1963/10/2/309
姚凯伦1, 田巨平2
Tian Ju-ping (田巨平)ab, Yao Kai-lun (姚凯伦)cde
摘要: Viscous fingering (VF) in random Sierpinski carpet is investigated by means of successive over-relaxation technique and under the assumption that bond radii are of Rayleigh distribution. In the random Sierpinski network, the VF pattern of porous media in the limit M→∞ (M is the viscosity ratio and equals to η2/η1 where η1 and η2 are the viscosities of the injected and displaced fluids, respectively) is found to be similar to the diffusion-limited aggregation (DLA) pattern. The interior of the cluster of the displacing fluid is compact on long length scales when M=1, and the pores in the interior of the cluster have been completely swept by the displacing fluid. For finite values of M such as M≥10, the pores in the interior of the cluster have been only partly swept by the displacing fluid on short length scales. But for values of M in 1
中图分类号: (Flows through porous media)