Discharge rate characterization for submerged grains flowing through a hopper using DEM-LBM simulations

Using DEM in Particulate Flow Simulations

Validation Experiments for LBM Simulations of Electron Beam Melting

This paper validates 3D simulation results of electron beam melting (EBM) processes comparing experimental and numerical data. The physical setup is presented which is discretized by a three dimensional (3D) thermal lattice Boltzmann method (LBM). An experimental process window is used for the validation depending on the line energy injected into the metal powder bed and the scan velocity of th...

Cyclic Features of Polygon-shaped Materials through DEM Simulations

Numerical simulations of cyclic biaxial tests were performed on samples with polygonal particles having aspect ratios (AR) equal to 1 up to 3 to better understand the cyclic behaviour of granular materials. The samples are created by deposit under gravity leading to the existence of an inherent anisotropy. Nevertheless, for the sample with AR equal to 1, numerical tests were also performed from...

Coupled DEM-LBM method for the free-surface simulation of heterogeneous suspensions

The complexity of the interactions between the constituent granular and liquid phases of a suspension requires an adequate treatment of the constituents themselves. A promising way for numerical simulations of such systems is given by hybrid computational frameworks. This is naturally done, when the Lagrangian description of particle dynamics of the granular phase finds a correspondence in the ...

Micromechanics of Undrained Response of Dilative Granular Media 1 Using a Coupled DEM - LBM Model : A Case of Biaxial Test

16 In this paper the Discrete Element Method (DEM) is coupled with the Lattice-Boltzmann 17 Method (LBM) to model the undrained condition of dense granular media that display significant 18 dilation under highly confined loading. DEM-only models are commonly used to simulate the 19 micromechanics of an undrained specimen by applying displacements at the domain boundaries 20 so that the specimen...