论文标题
在准2D流体中的液滴合并
On droplets coalescence in a quasi-2D fluid
论文作者
论文摘要
液滴的合并在自然和现代技术中起着至关重要的作用。各种实验和理论研究探索了3D和2D固体或液体底物的液滴动力学。在本文中，我们证明了限制在薄的准2D液体中的各向同性液滴的聚结（过热的近晶膜）。我们使用高速成像观察到千分尺的平滴并分析液滴的形状转换。我们的研究揭示了聚结时间的缩放定律，与固体底物上的液滴相比，对液滴几何形状的依赖性不同。提出了一个理论模型来解释行为差异。
The coalescence of droplets plays a crucial role in nature and modern technology. Various experimental and theoretical studies explored droplet dynamics in 3D and on 2D solid or liquid substrates. In this paper, we demonstrate the coalescence of isotropic droplets confined in thin quasi-2D liquids -- overheated smectic films. We observe the merging of micrometer-sized flat droplets using high-speed-imaging and analyse the shape transformations of the droplets on the timescale of milliseconds. Our studies reveal the scaling laws of the coalescence time, which exhibits a different dependence on the droplet geometry than in case of droplets on a solid substrate. A theoretical model is proposed to explain the difference in behaviour.
