Liquid Drops on a Rough Surface
Liquid Drops on a Rough Surface
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粗糙表面上的液滴
DOI：
10.1002/cpa.21793
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发表时间：
2016
影响因子：
3
通讯作者：
Inwon C. Kim
中科院分区：
文献类型：
--
作者：
W. M. Feldman;Inwon C. Kim
我们考虑一个液滴坐在一个粗糙的固体表面上处于平衡状态，总界面能的体积约束最小。这种液滴的大尺度形状在很大程度上取决于固体表面的微观结构。表面粗糙度增强了表面的亲水性和疏水性，改变了液滴和表面之间的平衡接触角。我们的目标是了解具有固定小尺度粗糙度的液滴的形状。为了实现这一目标，我们开发了一个定量描述的滴和它的接触线的背景下，定期均匀化理论，建立在定性理论的Alberti和DeSimone。© 2018 Wiley Periodicals，Inc.
We consider a liquid drop sitting on a rough solid surface at equilibrium, a volume‐constrained minimizer of the total interfacial energy. The large‐scale shape of such a drop strongly depends on the microstructure of the solid surface. Surface roughness enhances hydrophilicity and hydrophobicity properties of the surface, altering the equilibrium contact angle between the drop and the surface. Our goal is to understand the shape of the drop with fixed small‐scale roughness. To achieve this, we develop a quantitative description of the drop and its contact line in the context of periodic homogenization theory, building on the qualitative theory of Alberti and DeSimone. © 2018 Wiley Periodicals, Inc.