GRAVITY INVASION PERCOLATION IN 2 DIMENSIONS - EXPERIMENT AND SIMULATION

被引：132

作者：

BIROVLJEV, A ^{[1
]}

FURUBERG, L ^{[1
]}

FEDER, J ^{[1
]}

JOSSANG, T ^{[1
]}

MALOY, KJ ^{[1
]}

AHARONY, A ^{[1
]}

机构：

[1] TEL AVIV UNIV, RAYMOND & BEVERLY SACKLER FAC EXACT SCI, SCH PHYS & ASTRON, IL-69978 TEL AVIV, ISRAEL

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.67.584

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present experiments and computer simulations of slow drainage in a two-dimensional porous medium. The effect of gravity is systematically varied by tilting the system from the horizontal position. The width a of the front between the fluids is found to scale with the dimensionless Bond number Bo (ratio between gravitational and capillary forces) as sigma approximately Bo-0.57, as predicted by theory. The external perimeter of the invaded structure is shown to be fractal with the fractal dimension D(e) congruent-to 1.34 for length scales smaller than the front width.

引用

页码：584 / 587

页数：4

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