MFiX 17.3 Release Announcement



Dear MFiX user,

We are pleased to announce the release of the new version of MFiX 17.3. Please visit to download the latest version. See the release note below that highlights the changes from the previous version.

Please send any software related questions to or administrative questions to


The MFiX Development Team



MFiX 17.3 Release note:


  • Faster build for chemically reacting simulations (new script to generate
  • Bug fixes for building the custom solver
  • Better approximation of remaining run time
  • Corrected endianness of the .RES file
  • Better workflow when adding new Boundary Condition
  • Dropping support for Python 2
  • Various other bug fixes


Online Documentation:

Installation instructions:

Video tutorials: