# Coalescence in two-dimensional foams: a purely statistical process

## TL;DR

This study investigates coalescence in 2D foams, revealing it as a stochastic process primarily influenced by the thin film area between bubbles, through detailed statistical analysis of individual events.

## Contribution

It provides the first detailed statistical analysis of coalescence events in 2D foams, highlighting the proportionality to film area and stochastic nature of the process.

## Key findings

- Coalescence probability is proportional to the thin film area.
- Coalescence is primarily a stochastic process.
- Parameter influences on coalescence are statistically characterized.

## Abstract

While coalescence is ultimately the most drastic destabilization process in foams, its underlying processes are still unclear. To better understand them, we track individual coalescence events in two-dimensional foams at controlled capillary pressure. We obtain statistical information revealing the influence of the different parameters which have been previously proposed to explain coalescence. Our main conclusion is that coalescence probability is simply proportional to the area of the thin film separating two bubbles, suggesting that coalescence is mostly stochastic.