Observation of a finite-time singularity in needle propagation in Hele-Shaw cells

被引：11

作者：

Greffier, O ^{[1
]}

Al kahwaji, A ^{[1
]}

Rouch, J ^{[1
]}

Kellay, H ^{[1
]}

机构：

[1] Univ Bordeaux 1, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.81.3860

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Very narrow fingers or needles are observed in viscous fingering experiments using lyotropic lamellar phases as the viscous liquid and air as the less viscous fluid. The highly anisotropic flow-induced texture of the lamellar phase is strongly correlated with the onset of needle formation. The needles are observed to have a width which decreases to zero while the velocity of the tip increases dramatically with time, reminiscent of a finite-time singularity. [S0031-9007(98)07544-9].

引用

页码：3860 / 3863

页数：4

共 17 条

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