Mixing and separation of rotating drums

Hello,everyone!
I am now studying the mixing and separation of two particles in the rotating drum. Now I want to see the mixing index of particles at different times. Do you know which.f file is needed to write and export the data? Thank you for your attention!

Hi Xutong - that’s a nice image.

I don’t believe that MFiX has any built-in computation of “mixing index”.
A Google search for “mfix” and “mixing index” turns up a few interesting papers where people have implented the (Lacey) mixing index within the DEM framework.

https://www.google.com/search?q="mfix"+"mixing+index"

There are also some other MFiX users on the forum studying mixing index:

Hope this helps,

– Charles

Thank you very much for your help. @cgw