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Ghost-patterning and non-patterning in a draining film model.
The European Physical Journal E ( IF 1.8 ) Pub Date : 2020-05-29 , DOI: 10.1140/epje/i2020-11954-y
Craig A Hall 1 , R M L Evans 1
Affiliation  

Abstract

Patterns can form when the uniform state of any system is unstable so that some non-uniform motif grows in amplitude. Here, we identify an alternative way to form non-trivial structures, which we call “ghost-patterns”. Ghost-patterns emerge from noisy initial conditions when all non-uniform modes decay in amplitude except for one non-trivial motif which fails to decay. Hence, in seeking structured states, it is not necessary to find positive growth rates. We demonstrate ghost-patterns in an idealized non-equilibrium model intended to emulate draining thin-film suspensions.

Graphical abstract



中文翻译:

排水膜模型中的重影图案化和非图案化。

摘要

当任何系统的均匀状态不稳定时,就会形成图案,从而使某些不均匀的图案幅度增大。在这里,我们确定了形成非平凡结构的另一种方法,我们称之为“鬼图案”。当所有非均匀模式的振幅都衰减时,鬼声模式会从嘈杂的初始条件中出现,只有一个非平凡的模式会衰减。因此,在寻求结构化状态时,没有必要找到正的增长率。我们在理想的非平衡模型中演示了幻影模式,该模型旨在模拟排水薄膜悬浮液。

图形概要

更新日期:2020-05-29
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