Drop splashing on a dry smooth surface.
نویسندگان
چکیده
The corona splash due to the impact of a liquid drop on a smooth dry substrate is investigated with high-speed photography. A striking phenomenon is observed: splashing can be completely suppressed by decreasing the pressure of the surrounding gas. The threshold pressure where a splash first occurs is measured as a function of the impact velocity and found to scale with the molecular weight of the gas and the viscosity of the liquid. Both experimental scaling relations support a model in which compressible effects in the gas are responsible for splashing in liquid solid impacts.
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عنوان ژورنال:
- Physical review letters
دوره 94 18 شماره
صفحات -
تاریخ انتشار 2005