Universality of stretching separation
Abstract
We develop a parameter-free model for the fragmentation of drops colliding off-center. The prediction is excellent over a wide range of liquid properties. The so-called stretching separation is attributed to the extension of the merged drop above a critical aspect ratio of {3.25}. The evolution of this aspect ratio {is influenced by the liquid viscosity} and can be interpreted via an energy balance. This approach is then adapted to drop-jet collisions, which we model as consecutive drop-drop collisions. {The fragmentation criterion is similar the one observed at drop-drop collisions}, while the evolution of the stretched jet aspect ratio is modified to account for the different flow fields and geometry.
Cite
@article{arxiv.2110.00333,
title = {Universality of stretching separation},
author = {David Baumgartner and Günter Brenn and Carole Planchette},
journal= {arXiv preprint arXiv:2110.00333},
year = {2023}
}
Comments
11 pages, 4 figures and supplementary material