THE ROLE OF DEFECTS IN THE TRANSITION BETWEEN DIFFERENT SYMMETRIES IN CONVECTIVE PATTERNS

被引：9

作者：

CILIBERTO, S ^{[1
]}

PAMPALONI, E ^{[1
]}

PEREZGARCIA, C ^{[1
]}

机构：

[1] UNIV NAVARRA,DEPT FIS,E-31080 PAMPLONA,SPAIN

来源：

JOURNAL OF STATISTICAL PHYSICS | 1991年 / 64卷 / 5-6期

关键词：

RAYLEIGH-BENARD CONVECTION; PATTERNS; DEFECTS; GINZBURG-LANDAU EQUATION;

D O I：

10.1007/BF01048813

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The properties of the transition between two patterns with different symmetries are studied in an experiment on thermal convection in a fluid layer heated from below. The defect structure is also analyzed and it is found that the unstable phase is present in the defect cores. The experimental results are in agreement with a model of three coupled Ginzburg-Landau equations.

引用

页码：1045 / 1058

页数：14

共 17 条

[1] THE AMPLITUDE EQUATION NEAR THE CONVECTIVE THRESHOLD - APPLICATION TO TIME-DEPENDENT HEATING EXPERIMENTS [J].