VISCOUS FINGERING WITH ADVERSE ANISOTROPY - A NEW SAFFMAN-TAYLOR FINGER

被引：23

作者：

BENAMAR, M

COMBESCOT, R

COUDER, Y

机构：

[1] UNIV PARIS 06, ECOLE NORMALE SUPER, CNRS, PHYS STAT LAB, PARIS, FRANCE

[2] UNIV PARIS 07, ECOLE NORMALE SUPER, CNRS, PHYS STAT LAB, F-75221 PARIS 05, FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.70.3047

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Viscous fingering in a linear channel is investigated in the presence of anisotropy, when the directions of easy growth are at 45-degrees to the direction of the cell axis. Experimentally, when the velocity is increased, the stable fingers and the averaged unstable ones tend to occupy an increasing fraction of the cell width, in contrast with the standard situation. The numerical simulation and the analytical investigation reveal the existence of a new solution for the Saffman-Taylor finger which does not belong to the standard manifold.

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页码：3047 / 3050

页数：4

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