Phys. Rev. Lett. 94, 184505 (2005) [4 pages]Drop Splashing on a Dry Smooth SurfaceReceived 27 January 2005; published 11 May 2005 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. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.184505
DOI:
10.1103/PhysRevLett.94.184505
PACS:
47.20.Cq, 47.20.Ma, 47.40.Nm, 47.55.Dz
See AlsoComment: Khellil Sefiane, Thermal Effects in the Splashing of Drops under a Reduced Pressure Environment, Phys. Rev. Lett. 96, 179401 (2006). Reply: Lei Xu, Wendy W. Zhang, and Sidney R. Nagel, Xu, Zhang, and Nagel Reply:, Phys. Rev. Lett. 96, 179402 (2006). |
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