MFiX 19.1 is now available, with a new implementation of the Particle in Cell (PIC) model.
Release note: MFiX 19.1 Release Announcement - Multiphase Flow Science Group at NETL
Download page (login required): https://mfix.netl.doe.gov/mfix/download-mfix/
Online documentation: https://mfix.netl.doe.gov/doc/mfix/19.1.0/