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

共 21 条

[1]

[Anonymous], 1993, BENARD CELLS TAYLOR

[2]

ATKINS PW, 1978, PHYSICAL CHEM

[3] THE EVOLUTION OF CHEMICAL-PATTERNS IN REACTIVE LIQUIDS, DRIVEN BY HYDRODYNAMIC INSTABILITIES [J].

AVNIR, D ;

KAGAN, ML .

CHAOS, 1995, 5 (03) :589-601

[4]

BRDICKA R, 1962, GRUNDLAGEN PHYSIKALI

[5] PATTERN-FORMATION OUTSIDE OF EQUILIBRIUM [J].

CROSS, MC ;

HOHENBERG, PC .

REVIEWS OF MODERN PHYSICS, 1993, 65 (03) :851-1112

[6]

DALLEVEDOVE W, 1981, J COLLOID INTERF SCI, V84, P318

[7] Square cells in surface-tension-driven Benard convection: experiment and theory [J].

Eckert, K ;

Bestehorn, M ;

Thess, A .

JOURNAL OF FLUID MECHANICS, 1998, 356 :155-197

[8]

GRAHN AM, UNPUB

[9]

Howard L. N., 1966, P 11 INT C APPL MECH, P1109

[10]

MARTINCIGH BS, 1996, PHYS REV E, V52, P6146

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