Surface engineering through chemical & topographical manipulation and drop dynamics on such surfaces

大自然提供了荷叶表面工程的例子，当雨滴在叶子上滚动时，叶子会自我清洁。这种惊人的自清洁性能是由于表面形貌，化学和下落运动。了解固体表面上掉落运动的物理原理，以及在运动的早期阶段促进或阻碍这种运动的因素，以及如何以及如何对表面进行化学或地形处理以操纵掉落运动是本提案的主题。理解上述问题的含义不仅具有学术意义，而且具有工业应用意义；例如，燃料电池的工程表面可以允许液滴在通道中脱落，以避免其泛滥，从而提高效率，或者冷凝器以液滴方式而不是膜状冷凝模式运行，这将大大提高性能。

Nature provides examples of surface engineering in Lotus leaves that are self-cleaning when rain drops roll on these leaves. This amazing self-cleaning property is due to surface topography, chemistry and drop motion. Understanding the physics of drop motion on solid surfaces and what can facilitate or hinder this motion at early stages of movement along with how and what can be done to a surface chemically or topographically to manipulate drop movement are the subjects of this proposal. The implications of understanding above issues is not only of academic interest, but also of industrial applications; e.g., engineered surfaces for fuel cell can allow drop shedding in channels to avoid their flooding resulting in enhanced efficiency, or condensers that operate in drop-wise rather than film condensation mode, which will have much improved performance.