Pinch-off of liquid jets at the finite scale of an interface

Abstract

This work examines how a fluid-fluid interface can not be considered infinitely narrow within fluid fragmentation. A set of self-similar equations is obtained and resolved for the jet pinching-off as the finite-thickness of the interface becomes the characteristic radial size. This approach can lead to further understanding of physical phenomena involving free-surface flows close to the nanoscale, for example, in structural biology with XFEL or aerospace thrusters.