Pattern formation near an oscillatory instability for systems without ''up-down'' symmetry

被引:5
作者
Brand, HR [1 ]
Deissler, RJ [1 ]
机构
[1] UNIV BAYREUTH,D-95440 BAYREUTH,GERMANY
关键词
D O I
10.1016/S0375-9601(97)00306-X
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present the results of our numerical investigations of the order parameter equation associated with an oscillatory instability with a small onset frequency of systems lacking ''up-down'' symmetry, Qualitatively different patterns arise depending on whether periodic or more realistic boundary conditions are used. Among the patterns found are blinking hexagons, traveling rectangular patterns, and states that are disordered in space and time, which dominate for realistic boundary conditions, Experimentally accessible systems for which our predictions could be checked might include non-Boussinesq convection in binary fluid mixtures. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:179 / 184
页数:6
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