Strukturbildung durch Frontpropagation bei Benetzung und Entnetzung

润湿和反润湿过程中通过前沿传播形成结构

• 批准号: 5105180
• 负责人: Professor Dr. Heiner Müller-Krumbhaar
• 金额: --
• 依托单位: PGI-1 / IAS-1: Quanten-Theorie der Materialien
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 1998
• 资助国家: 德国
• 起止时间: 1997-12-31 至 2002-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5105180?language=en
• 关键词: Strukturbildung; durch; Frontpropagation; bei; Benetzung

Pattern-formation during wetting-dewetting transitions of a substrate will be investigated by analytical and numerical studies. The formation of structures occur through the propagation and folding of the wetting-front. Influences of the phase-diagram and the transition from a thin to a thick fluid film are of particular interest. Variations of the surface-tension through varying composition of the wetting fluid may lead to changes in the wetting-patterns. The investigation of these phenomena will require the treatment of both diffusive and convective transport. A meanwhile developed numerical scheme allows us to threat the hydrodynamic flow in some detail. We hope to detect and to generalize scaling laws for the universal aspects of this pattern-forming process, which can be compared with recent experiments.

将通过解析和数值研究来研究衬底在润湿-去湿转变过程中的图案形成。构造的形成是通过湿润锋的传播和折叠来实现的。相图的影响和从薄到厚的流体薄膜的转变是特别有趣的。由于润湿流体组成的不同，表面张力的变化可能会导致润湿图案的变化。对这些现象的研究需要同时处理扩散输送和对流输送。同时开发的数值格式使我们能够更详细地威胁流体动力流动。我们希望发现并推广这种图案形成过程的普遍方面的标度定律，可以与最近的实验进行比较。