I have modified the conveyor-3d project:

I set the solver to “Glued-sphere-particle” and the Model of Solid 1 to “Glued-sphere particle DEM (MFIX-GSP)”. The Number of Spheres is set to 4. Any other parameters were set by the Glued sphere designer (Eq. dial: 0.0975, area 0.037, volume 0.000485, Q1=1, Q2, Q3, Q4 = 0).

While running the simulation, I encountered the following error message:

"Error 1110: Solids velocity for BC 6 is too low to satisfy DEM inlet packing restrictions.

Max user-specified BC velocity: 0.20000

Minimum required solids Velocity: 0.92909"

If I increase the BC velocity (Y-axial velocity of the top inlet / ID6) to 0.93 and higher, the minimum required velocity also increases accordingly.

How can I fix this problem? Thanks in advance.