Impinging Jets and Droplet Dynamics

TL;DR

This paper presents high-fidelity 3D numerical simulations of liquid sheet formation and droplet dynamics caused by impinging jets, utilizing advanced adaptive mesh refinement techniques for detailed flow analysis.

Contribution

The study introduces a novel thickness-based refinement algorithm within a Volume-of-Fluid framework to efficiently simulate complex interfacial flows and droplet interactions.

Findings

Detailed flow patterns of impinging jets captured

Insights into secondary breakup and droplet collision dynamics

Enhanced simulation efficiency through adaptive mesh refinement

Abstract

In this fluid dynamics video, results from high fidelity numerical simulations are presented, which have been carried out to study the flow and droplet dynamics of liquid sheets formed by two impinging jets. A three-dimensional Volume-of-Fluid (VOF) method with adaptive mesh refinement (AMR) based on octree meshes [1] is used to simulate the various flow patterns associated with impinging jets, secondary breakup and binary collision of droplets. In addition to AMR, a thickness based refinement algorithm is also developed and implemented to efficiently resolve the various scales of surface tension driven interfacial flows.