Hysteresis and Avalanches in Two Dimensional Foam Rheology Simulations

TL;DR

This paper investigates the rheological behavior of two-dimensional foams under shear, revealing how structural disorder influences the dynamics of topological rearrangements through Monte Carlo simulations.

Contribution

It introduces a Monte Carlo simulation approach to study the effect of disorder on foam rheology and topological rearrangements.

Findings

Disorder significantly affects foam dynamics under shear.

Topological rearrangements depend on the level of structural disorder.

Simulation results provide insights into foam rheological properties.

Abstract

Foams have unique rheological properties that range from solid-like to fluid-like. We study two-dimensional non-coarsening foams of different disorder under shear in a Monte Carlo simulation, using a driven large-Q Potts model. We find that the dynamics of topological rearrangements depend sensitively on the structural disorder.