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Multiphase simulation failing to model sphere-filled composite DEM particle motion

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Old   October 10, 2020, 06:25
Default Multiphase simulation failing to model sphere-filled composite DEM particle motion
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Hi everyone,

I'm running a Lagrangian Multiphase DEM simulation of a single solid phase mixed in water. My solid phase is a sphere-filled composite particle in the shape of a spheroid:

DEM_particle.PNG

I created an injector for my solid phase at the middle inlet of my geometry (shown in the bottom image) so that the phase is moving in the positive z-direction. When I run the simulation, it seems that the individual spheres in my sphere-filled composite particle model are dispersed in the XY-plane like so (I've counted up the spheres and they always match the number of spheres I used for the composite particle, no matter what I set that number to). Has anyone seen anything like this before?

simulation.jpg

Cheers
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