Apparent Contact Angle around the Periphery of a Liquid Drop on Roughened Surfaces

Apparent Contact Angle around the Periphery of a Liquid Drop on Roughened Surfaces

The wetting of roughened surfaces is complicated since not all of the surface of the irregular surface is wetted and thus, the three-phase contact line for the liquid drop is a complex, three-dimensional line that varies according to the dimensions of the roughness and its spatial heterogeneity. This can cause the contact line to not sit within a constant height horizontal plane especially when air is trapped underneath the liquid layer. Here, we explore t..

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