MFIX2013-2 Release Announcement

Dear MFIX user,

We are pleased to announce the release of the new version of MFIX (MFIX2013-2). Please visithttps://mfix.netl.doe.gov/members/download.php to download the latest version. Please see the release notes below that highlight the changes from the previous version.

Please send any software related questions to mfix-help@mfix.netl.doe.gov or administrative questions toadmin@mfix.netl.doe.gov.

Regards,
MFIX Development Team

Changes from MFIX2013-1 (Date: 03/06/2013) to MFIX2013-2 (Date: 09/25/2013)

New features added:

  • Stiff chemistry model
    • The stiff chemistry solver was completely overhauled to eliminate any user coding. This capability can now be activated with a single keyword.
  • Point Source
    • The ability to specify mass inlet point source anywhere in the domain was added. This can be useful when modeling a small side inlet, without having to resolve the actual geometry.
  • Subgrid models
    • The two-fluid Igci and Milioli filtered models were implemented and can be activated by new keywords.
  • DEM cluster detection
    • An algorithm to detect clusters and collect information was implemented.

Changes in existing features:

  • Parallel execution
    • The SMP directives have been updated in key-subroutines. The SMP compilation options (including hybrid SMP+DMP) have been turned back on. Please note that the reported CPU time may be inaccurate in SMP mode.
  • Bug fixes and enhancements
    • Cyclic boundaries with pressure drop: flags CYCLIC_AT_E/N/T were corrected.

Documentation

  • Updated documents
    • Readme file [1]

Under Development:

    • Variable solids density
      • Ability to have solids density vary as a function of species composition (Eulerian/Eulerian solver)

 

Project Metrics:

  • Change from 2013-1 Release:
    • 13 files were removed due to stiff-solver overhaul (net count)
  • 2013-2 Total count:
    • Files: 526
    • Lines: 195,755
    • Blank Lines: 26,750
    • Code Lines: 116,321
    • Comment Lines: 56,292
    • Statements: 85,702

References:

  1. https://mfix.netl.doe.gov/documentation/Readme.pdf
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