Krechetnikov Rouslan, Homsy George M
Department of Mathematics, University of Alberta, Edmonton, Canada.
J Colloid Interface Sci. 2009 Mar 15;331(2):555-9. doi: 10.1016/j.jcis.2008.11.079. Epub 2008 Dec 16.
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.
