COUNTERPROPAGATING QUASI-LINEAR WAVE-PACKETS IN BINARY-FLUID CONVECTION

被引：30
|
作者：
KOLODNER, P
机构：
[1] AT and T Bell Laboratories, Murray Hill
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.69.2519
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
I report observations of a new state of traveling-wave convection which consists of pairs of localized wave packets which propagate around an annular cell in opposite directions. During their periodic collisions, the wave packets experience a loss in amplitude due to nonlinear interaction which exactly compensates the linear gain they experience at other times. This leads to a regular, small-amplitude state with high phase and group velocities. This state offers the promise of being quantitatively explainable on first principles using the simplest model of coupled complex Ginzburg-Landau equations.
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页码：2519 / 2522
页数：4
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