Anomalous velocity fluctuation in one-dimensional defect turbulence
Anomalous velocity fluctuation in one-dimensional defect turbulence
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一维缺陷湍流中的反常速度脉动
DOI：
10.1103/physreve.91.022127
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Kadoya and H. Konno
中科院分区：
文献类型：
--
作者：
Y. Uchiyama;T. Kadoya and H. Konno
本文给出了一维复Ginzburg-Landau方程缺陷湍流中的各种偏心空穴动力学。每个黑洞都表现出变速的相干质点运动。另一方面，在没有区分每个孔的情况下，连续的孔速度表现出异常的间歇性运动，服从多时间尺度的非高斯统计。提出了一个交替的非马尔可夫随机微分方程，用它可以成功地描述所有这些观察到的统计性质。
In this paper various eccentric hole dynamics are presented in defect turbulence of the one-dimensional complex Ginzburg-Landau equation. Each hole shows coherent particlelike motion with nonconstant velocity. On the other hand, successive hole velocities without discriminating each hole exhibit anomalous intermittent motions being subject to multi-time-scale non-Gaussian statistics. An alternate non-Markov stochastic differential equation is proposed, by which all these observed statistical properties can be described successfully.