A falling droplet as it falls apart

TL;DR

This paper investigates the fragmentation process of falling liquid droplets in a quiescent medium using advanced numerical simulations, highlighting the effects of different Eotvos numbers and employing an efficient adaptive VOF method.

Contribution

It introduces an adaptive octree-based VOF simulation approach to study droplet fragmentation with reduced computational costs.

Findings

Fragmentation behavior varies with Eotvos number.

Adaptive meshing improves simulation efficiency.

Results provide detailed visualization of droplet breakup.

Abstract

Using direct numerical simulations, the fragmentation of falling liquid droplets in a quiescent media is studied. Three simulations with different Eotvos numbers were performed. An adaptive volume of fluid(VOF) method based on octree meshing is used, providing a notable reduction of computational cost. The current video includes 4 main parts describing the fragmentation of the falling droplet.