Dynamics of initial drop splashing on a dry smooth surface.

We simulate the onset and evolution of the earliest splashing of an infinite cylindrical liquid drop on a smooth dry solid surface. A tiny splash is observed to be emitted out of the rim of the lamella in the early stage of the impact. We find that the onset time of the splash is primarily dependent...

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Main Authors: Zhenlong Wu, Yihua Cao
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5426750?pdf=render
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author Zhenlong Wu
Yihua Cao
author_facet Zhenlong Wu
Yihua Cao
author_sort Zhenlong Wu
collection DOAJ
description We simulate the onset and evolution of the earliest splashing of an infinite cylindrical liquid drop on a smooth dry solid surface. A tiny splash is observed to be emitted out of the rim of the lamella in the early stage of the impact. We find that the onset time of the splash is primarily dependent on the characteristic timescale, which is defined by the impact velocity as well as the drop radius, with no strong dependence on either the liquid viscosity or surface tension. Three regimes are found to be responsible for different splashing patterns. The outermost ejected droplets keep extending radially at a uniform speed proportional to the impact speed. Finally, we discuss the underlying mechanism which is responsible for the occurrence of the initial drop splash in the study.
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spelling doaj.art-a21a6d8667ff40eebd094a88acd912fc2022-12-21T19:30:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01125e017739010.1371/journal.pone.0177390Dynamics of initial drop splashing on a dry smooth surface.Zhenlong WuYihua CaoWe simulate the onset and evolution of the earliest splashing of an infinite cylindrical liquid drop on a smooth dry solid surface. A tiny splash is observed to be emitted out of the rim of the lamella in the early stage of the impact. We find that the onset time of the splash is primarily dependent on the characteristic timescale, which is defined by the impact velocity as well as the drop radius, with no strong dependence on either the liquid viscosity or surface tension. Three regimes are found to be responsible for different splashing patterns. The outermost ejected droplets keep extending radially at a uniform speed proportional to the impact speed. Finally, we discuss the underlying mechanism which is responsible for the occurrence of the initial drop splash in the study.http://europepmc.org/articles/PMC5426750?pdf=render
spellingShingle Zhenlong Wu
Yihua Cao
Dynamics of initial drop splashing on a dry smooth surface.
PLoS ONE
title Dynamics of initial drop splashing on a dry smooth surface.
title_full Dynamics of initial drop splashing on a dry smooth surface.
title_fullStr Dynamics of initial drop splashing on a dry smooth surface.
title_full_unstemmed Dynamics of initial drop splashing on a dry smooth surface.
title_short Dynamics of initial drop splashing on a dry smooth surface.
title_sort dynamics of initial drop splashing on a dry smooth surface
url http://europepmc.org/articles/PMC5426750?pdf=render
work_keys_str_mv AT zhenlongwu dynamicsofinitialdropsplashingonadrysmoothsurface
AT yihuacao dynamicsofinitialdropsplashingonadrysmoothsurface