Complex dynamics of a localized target pattern in electrohydrodynamic convection.
Complex dynamics of a localized target pattern in electrohydrodynamic convection.
复制标题
电流体动力对流中局部目标模式的复杂动力学。
DOI：
10.1103/physreva.46.3540
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Kokubo
中科院分区：
文献类型：
--
作者：
Sano;Sato;Nasuno;Kokubo
一个二维的细胞模式（晶格）创建的电流体动力学对流的液晶显示极限环振荡。我们发现了一个自组织振荡中心发出的波前的局部目标图案。局域结构有一个生命周期：它从一个均匀的状态产生，生长，并从其中心的成核缺陷崩溃。这种现象是由波与底层晶格的变形之间的相互作用引起的，并且不同于局域行波中的现象
A two-dimensional cellular pattern (lattice) created by electrohydrodynamic convection of a nematic liquid crystal exhibits limit cycle oscillations. We found a localized target pattern of wave fronts emitted from a self-organized oscillating center. The localized structure has a life cycle: it arises from a uniform state, grows, and collapses from nucleating defects at its center. This phenomenon is caused by an interaction between the waves and deformations of the underlying lattice, and is different from that in localized traveling waves