STABILITY LIMITS OF SPIRALS AND TRAVELING WAVES IN NONEQUILIBRIUM MEDIA

被引：113

作者：

ARANSON, IS ^{[1
]}

ARANSON, L ^{[1
]}

KRAMER, L ^{[1
]}

WEBER, A ^{[1
]}

机构：

[1] UNIV BAYREUTH, INST PHYS, W-8580 BAYREUTH, GERMANY

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.46.R2992

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that the Eckhaus instability for traveling waves is of convective nature and does not directly lead to absolute instability. As a consequence spiral waves remain stable in a larger range than expected previously, transition to defect-mediated turbulence can be delayed beyond the Benjamin-Feir limit, and the occurrence of phase turbulence can be made plausible. We calculate the onset of absolute instability using the complex Ginzburg-Landau equation and verify the results by simulations.

引用

页码：R2992 / R2995

页数：4

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