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Related Experiment Video

Updated: May 23, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Plateau Rayleigh instability simulation.

Ryan Mead-Hunter¹, Andrew J C King, Benjamin J Mullins

¹Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6845, Australia.

Langmuir : the ACS Journal of Surfaces and Colloids

|April 20, 2012

Summary

Computational fluid dynamics (CFD) simulations using a volume-of-fluid (VOF) solver accurately predict liquid film breakup into droplets. Airflow affects droplet formation time but not stable film thickness, with new displacement relationships derived.

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Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids

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Area of Science:

Fluid Dynamics
Computational Physics

Background:

Plateau-Rayleigh instability describes liquid jet and film breakup.
Understanding droplet formation is crucial in various industrial processes.

Purpose of the Study:

To simulate liquid film breakup on a cylindrical element using computational fluid dynamics (CFD).
To validate the volume-of-fluid (VOF) method against experimental data and theory.
To investigate the influence of airflow on droplet formation and motion.

Main Methods:

Simulation of Plateau-Rayleigh instability using a volume-of-fluid (VOF) solver.
Comparison of simulation results with experimental observations and theoretical predictions.
Analysis of droplet spacing, motion, and displacement under fluid flow.

Main Results:

The VOF method accurately predicts the formation of axisymmetric or clam-shell droplets based on surface energy.
Simulations precluded the formation of unrealistically large films.
Droplet spacing showed good agreement with theoretical models.
Airflow around droplets reduced formation time but did not affect stable film thickness.

Conclusions:

The VOF method is a reliable tool for simulating liquid film breakup phenomena.
Novel relationships for droplet displacement were established based on simulation results.
The study provides insights into droplet formation dynamics influenced by external airflow.