From Particles to the Continuum: Mapping DEM Simulations to Eulerian Fields
DOI:
https://doi.org/10.70567/mc.v42.ocsid8360Keywords:
Granular media, DEM, Spatial averagingAbstract
Simulating dense-phase granular media using particles is computationally expensive on an industrial scale. For this reason, continuous models based on rheological laws are used to describe the macroscopic behaviour of the material. To adjust these models, reliable data capturing interactions at the grain level is required. Simulations using the Discrete Element Method (DEM) can provide this information on a laboratory scale, but the results are expressed in terms of particle properties and variables, which must be transformed into continuous fields. This paper presents a code that implements spatial averaging techniques to convert the results of DEM simulations from a Lagrangian perspective into continuous fields defined on an Eulerian mesh. Simple cases are also presented to demonstrate the ability to extract useful information for calibrating and validating these continuous models.
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