Splashing of liquids: interplay of surface roughness with surrounding gas

Abstract

We investigate the interplay between substrate roughness and surrounding gas pressure in controlling the dynamics of splashing when a liquid drop hits a dry solid surface. We associate two distinct forms of splashing with each of these control parameters: prompt splashing is due to surface roughness and corona splashing is due to instabilities produced by the surrounding gas. The size distribution of ejected droplets reveals the length scales of the underlying droplet-creation process in both cases.

arXiv comment6 pages, 6 figures

References in corpus (1)

• Drop Splashing on a Dry Smooth Surface

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