I have a question about how the author generated the spheres using the finite volume CFD cells generated by MFiX SMS. I would appreciate any reply from yours!
If you have not yet upgraded to MFiX 24.1, I suggest you do so, as it includes the glued-sphere partcile (GSP) model and a new “Glued-sphere designer” which lets you create GSP configurations.
Note that this code is still under active development.
I do not believe that Liquiang Lu reads this support forum, but if you have specific questions about the paper you cited, their email address is included in the paper and you can try to contact them directly.