Finite-size scaling for non-linear rheology of fluids confined in a small space

TL;DR

This paper uses molecular dynamics simulations and finite-size scaling analysis to investigate how confined fluids undergo rheological transitions due to the interplay between system size and cooperative particle motion.

Contribution

It introduces a finite-size scaling approach to understand the rheological transition in confined fluids, highlighting the role of cooperative particle motion.

Findings

Rheological transition depends on system size and particle motion length scale.

Finite-size effects are crucial in confined fluid rheology.

Simulation results support the scaling analysis.

Abstract

We perform molecular dynamics simulations in order to examine the rheological transition of fluids confined in a small space. By performing finite-size scaling analysis, we demonstrate that this rheological transition results from the competition between the system size and the length scale of cooperative particle motion.