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Crown-forming instability phenomena in the drop splash problem
Rouslan Krechetnikov1, George M Homsy
1Department of Mathematics, University of Alberta, Edmonton, Canada.
Abstract:
The objective of this work is to study the fundamental instability behind the crown formation in the problem of drop splashing on a pre-existing liquid film. Based on experimental and theoretical insights, we demonstrate that the most plausible instability mechanism is of the Richtmyer-Meshkov type associated with a nearly impulsive acceleration of the interface. We also discover frustration phenomena in the wave number selection of the crown spike structure and study the corresponding bifurcation picture.
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