CROSSOVER FROM FRACTAL TO COMPACT GROWTH FROM SIMULATIONS OF 2-PHASE FLOW WITH FINITE VISCOSITY RATIO IN 2-DIMENSIONAL POROUS-MEDIA

被引：19

作者：

FERER, M ^{[1
]}

GEISBRECHT, RA ^{[1
]}

SAMS, WN ^{[1
]}

SMITH, DH ^{[1
]}

机构：

[1] W VIRGINIA UNIV, DEPT PHYS, MORGANTOWN, WV 26506 USA

来源：

PHYSICAL REVIEW A | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1103/PhysRevA.45.R6973

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present simulations of Poiseuille flow in standard models of two-dimensional porous media for a variety of viscosity ratios. These simulations show definite crossover from initial diffusion-limited-aggregation-like fractal growth (m is-proportional-to R1.7) to compact growth (m is-proportional-to R2) on a length scale R(c), which increases as approximately the 1/3 power of the viscosity ratio. There appears to be an intermediate regime of denser-than-compact growth.

引用

页码：R6973 / R6976

页数：4

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