From granular avalanches to fluid turbulences through oozing pastes. A mesoscopic physically-based particle model

TL;DR

This paper introduces a unified mesoscopic particle model capable of simulating diverse complex phenomena in granular, fluid, and paste materials using only four physically-based parameters, making it accessible and computationally efficient.

Contribution

The paper presents a novel, unified particle-based model that accurately reproduces complex behaviors across different material types with minimal parameters.

Findings

Successfully simulates sand avalanches, fluid eddies, and paste oozing.

Uses only four simple parameters: elasticity, viscosity, and their influence areas.

Model is fast, easy to understand, and versatile across material behaviors.

Abstract

In this paper, we describe how we can precisely produce complex and various dynamic morphological features such as structured and chaotic features which occur in sand pilings (piles, avalanches, internal collapses, arches) , in flowing fluids (laminar flowing, Kelvin-Helmholtz and Von Karmann eddies), and in cohesive pastes (twist-and-turn oozing and packing) using only a single unified model, called "mesoscopic model". This model is a physically-based particle model whose behavior depends on only four simple, but easy to understand, physically-based parameters : elasticity, viscosity and their local areas of influence. It is fast to compute and easy to understand by non-physicist users.