竞争的分叉确定在光滑的图案表面上滴滴拍摄时的对称性破坏
Lucile Bisquert1, Élfego Ruiz-Gutiérrez2, Marc Pradas3
1Institute for Multiscale Thermofluids, School of Engineering, University of Edinburgh, The King's Buildings Mayfield Road, Edinburgh EH9 3FB, United Kingdom.
Langmuir : the ACS journal of surfaces and colloids
|November 6, 2024
概括
在有图案的表面上滴滴的行为取决于尺寸的变化. 对称或不对称的形状变化 (快点) 的可能性是由分叉点和它们与滴滴大小的变化决定的.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 流体动力学 流体动力学
背景情况:
- 滴滴的形状和稳定性在固体上取决于表面特性和滴滴大小.
- 在有图案的表面上的滴滴可以在尺寸变化 (如蒸发) 过程中经历突然的形状和位置变化.
- 这些快照与折叠 (对称) 和叉 (不对称) 两叉相连,但预测快照类型具有挑战性.
研究的目的:
- 为了确定控制对称与非对称滴滴在光滑的图案表面上发生的因素.
- 为了了解分叉点和滴滴大小变化期间的快拍行为之间的关系.
- 为设计能够管理滴滴行为的表面提供见解.
主要方法:
- 研究了滴水尺寸变化的影响,在光滑的图案表面.
- 分析了折叠和叉分叉距离对快速发生概率的影响.
- 研究了这些距离如何随着水滴的增长或缩小而变化.
主要成果:
- 观察对称或不对称的快点的概率取决于折叠点和叉分叉点之间的距离.
- 这种可能性进一步受到这种距离如何随着滴滴大小的变化 (增长或收缩) 而演变的影响.
结论:
- 这项研究表明,控制平滑模式上的分叉点的相对位置可以决定快速对称性.
- 这些发现提供了使用表面图案进行滴滴操纵的策略.
- 这些原则适用于其他表现出相互竞争的分叉和突破不稳定的系统.
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