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arXiv 2108.00641physics.flu-dyn
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可切换基底上润湿的多尺度透视:微观和介观模型之间的映射

Multiscale perspective on wetting on switchable substrates: mapping between microscopic and mesoscopic models

Moritz Stieneker, Leon Topp, Svetlana Gurevich, Andreas Heuer

摘要:

为了理解可切换基板上的液滴的非平衡弛豫动力学,需要理解不同长度和时间尺度的相互作用。我们提出了一种方法来映射的微观信息,从分子动力学模拟,到介观尺度,反映了一个薄膜模型。在讨论了映射过程之后,我们首先分析了在切换基板的润湿性时液滴的弛豫。此外,我们表明,一个几乎相同的映射过程可以用于描述两个聚结液滴。与我们的程序,我们采取的第一步扩展映射从平衡的情况下,非平衡润湿动力学,从而允许定量多尺度分析。

英文摘要:

To understand the non-equilibrium relaxation dynamics of a liquid droplet on a switchable substrate the interplay of different length- and time-scales needs to be understood. We present a method to map the microscopic information, resulting from a molecular dynamics simulation, to a mesoscopic scale, reflected by a thin film model. After a discussion of the mapping procedure we first analyze the relaxation of a liquid droplet upon switching the wettability of the substrate. Further, we show that a nearly identical mapping procedure can be used for the description of two coalescing droplets. With our procedure we take a first step to extend the mapping from the equilibrium case to non-equilibrium wetting dynamics, thus allowing for a quantitative multi-scale analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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