Shock-induced drop size and distributions

TL;DR

This paper presents an integral analysis method to predict drop sizes and distributions during shock-induced breakup, validated against experimental data, highlighting the energy transfer dynamics and distribution skewness.

Contribution

It introduces an updated analytical model for drop size prediction during shock-induced atomization, incorporating velocity ratio and fluid properties, validated with experimental comparisons.

Findings

Predicts drop sizes with reasonable accuracy based on velocity ratio.

Demonstrates the energy transfer from kinetic to surface tension during breakup.

Shows skewed size distributions due to non-linear velocity effects.

Abstract

We use an integral analysis of conservation equations of mass and energy, to determine the drop size and distributions during shock-induced drop break-up. The result is an updated form for the drop size as a function of its final velocity, from a series of work applied to various atomization geometries. Comparisons with experimental data demonstrate the validity and utility of this method. The shock-induced drop size and distributions can be predicted within reasonable accuracy as a function of the drop velocity ratio and fluid properties. The result also illustrates the dynamical process of kinetic energy deficit transferred to the surface tension energy, and the skewing of the drop size distribution due to the non-linear dependence on velocity ratio.