Plume and finger regimes driven by an exothermic interfacial reaction

被引：76

作者：

Eckert, K ^{[1
]}

Grahn, A

机构：

[1] Dresden Univ Technol, Inst Aerosp Engn, D-01062 Dresden, Germany

[2] Res Ctr Rossendorf, Inst Safety Res, D-01314 Dresden, Germany

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.82.4436

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the pattern formation in a chemical two-layer system, placed in-a-Hele-Shaw cell. The upper layer is an organic solvent in which a carboxylic acid is dissolved. The lower layer consists of water containing an inorganic base. We report on a novel instability type which is driven by an exothermic neutralization reaction in vicinity to the interface. This instability combines plume and finger regimes and gives rise to a self-sustained dynamics. [S0031-9007(99)09292-3].

引用

页码：4436 / 4439

页数：4