How to generate a homogenous dense packing in EDEM?

Raheem Sterling_22160

Hi,

Are there any methon to generate a homogenous dense packing(porosity<0.4) in EDEM, when I use the "volume packing" in EDEM, the particles near the boundary were not as homogenous as particles in the center.

Thanks

Stefan Pantaleev_21979

Hi Raheem,

The Volume Packing algorithm takes geometry into account. If your boundary was a geometry that may result in a local reduction in the solid fraction due to the need to avoid particle-geometry overlaps.

Have you tried generating the packing in a domain with periodic boundaries only?

Best regards,

Stefan

Raheem Sterling_22160

Stefan Pantaleev_21979 said:

Hi Raheem,

The Volume Packing algorithm takes geometry into account. If your boundary was a geometry that may result in a local reduction in the solid fraction due to the need to avoid particle-geometry overlaps.

Have you tried generating the packing in a domain with periodic boundaries only?

Best regards,

Stefan

Hi Stefan,

Yes, I tried generating packing with periodic boundaries, and I didn't find the selection in volume packing when I want to generate packing in normal distribution, can volume packing do this?

Regards!

Raheem

Stefan Pantaleev_21979

Raheem Sterling_22160 said:

Hi Stefan,

Yes, I tried generating packing with periodic boundaries, and I didn't find the selection in volume packing when I want to generate packing in normal distribution, can volume packing do this?

Regards!

Raheem

Hi Raheem,

EDEM still needs a geometry to create the particles in - in your case it should be a box with the same dimensions as the simulation domain and you should set the geometry type to be virtual. EDEM does not consider contacts between particles and a virtual geometry.

Best regards,

Stefan