Journal
PHYSICS OF FLUIDS
Volume 23, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3640028
Keywords
aerodynamics; air; drops; flow instability; jets; liquid films; lubrication; surface tension; thin films; two-phase flow; viscosity
Categories
Ask authors/readers for more resources
We study the influence of the surrounding gas in the dynamics of drop impact on a smooth surface. We use an axisymmetric model for which both the gas and the liquid are incompressible; lubrication regime applies for the gas film dynamics and the liquid viscosity is neglected. In the absence of surface tension a finite time singularity whose properties are analysed is formed and the liquid touches the solid on a circle. When surface tension is taken into account, a thin jet emerges from the zone of impact, skating above a thin gas layer. The thickness of the air film underneath this jet is always smaller than the mean free path in the gas suggesting that the liquid film eventually wets the surface. We finally suggest an aerodynamical instability mechanism for the splash. (C) 2011 American Institute of Physics. [doi:10.1063/1.3640028]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available