Simulating dense granular suspension rheology using LAMMPS

TL;DR

This paper demonstrates how to use the LAMMPS simulation package to model and analyze the rheological behavior of dense granular suspensions, aiding researchers in virtual rheometry and microscopic dynamics study.

Contribution

It provides a straightforward methodology for employing LAMMPS in dense suspension rheology simulations, leveraging existing code for efficient research.

Findings

Enables detailed microscopic analysis of dense suspensions.

Facilitates rapid exploration of suspension parameters.

Provides a practical guide for using LAMMPS in rheology studies.

Abstract

Dense suspensions are widespread in nature, manufacturing and process engineering. Particle-based simulations have proven to be an invaluable complement to experimental rheological characterisation, serving as a virtual rheometer that enables rapid exploration of parameter space and detailed scrutiny of microscopic dynamics. To maximise the utility of such simulations, it can be advantageous to exploit pre-existing, well-optimised, well-documented codes. Here we provide a simple description of how to use LAMMPS to study the rheology of dense, granular suspensions.