2.13. File Types

The following describes the type of files generated/loaded/imported by Fluent Icing:

  • Starting Input File

    *.cas

    Fluent case file. Contains the grid and configuration of your Fluent/Fluent Icing simulation.

    *.cas.gz (compressed case file) and *.cas.h5 (HDF / CFF case file) can also be used.

  • Airflow

    *.dat

    *.dat.h5 (the same format as the original case file is used)

    An Airflow file is tied to a case file. Moreover, multiple .dat files can be connected to a single original case file. This occurs when a simulation contains multiple airflow runs.

  • *.soln

    FENSAP solver solution file. Associated to a FENSAP format mesh (*.grid) file.

  • Airflow - Post

    *.cas.post

    *.dat.post

  • Particles

    *.droplet

    Water droplet solution file. Associated to a FENSAP format mesh (*.grid) file.

    *.crystal

    Ice crystal solution file. Associated to a FENSAP format mesh (*.grid) file.

    *.vapor

    Vapor solution file. Associated to a FENSAP format mesh (*.grid) file.

  • Ice Accretion

    *.swimsol

    Ice solution file (can be viewed with map.grid or ice.grid).

    *.map.grid

    Surface mesh of walls that have been enabled for icing.

    *.ice.grid

    Surface mesh of the ice shape produced by walls that have been enabled for icing

  • FENSAP Legacy Files vs CFF Files

    By default particles and icing solution written by Fluent Icing follow the FENSAP-ICE file format. This format can be read directly by Viewmerical and CFD-Post. A conversion of those files in CFF format is done before post-processing these solutions with Post-Analysis or EnSight.

    Once written in CFF format, meshes have the .cas.fsp suffix, while the solution files are written with the .dat.fsp suffix.

  • Ice Accretion – extra files.

    *.swimsol.s2g

    Mapping file to load a swimsol (areal solution) in Fluent. Automatically loaded/saved alongside a swimsol file. Required for Fluent Icing.

    *.rough

    Roughness profile when beading is enabled.

    *.disp

    Displacement profile that represents the volumetric accretion of ice.

  • Residuals (if Save Convergence to file is enabled in Solution).

    *.fconverg

    FENSAP airflow convergence.

    *.fgmres

    FENSAP airflow GMRES residuals.

    *.pconverg

    Particles convergence.

  • FENSAP grid (if Write FENSAP... grid is selected under FileExport).

    *.grid

    FENSAP grid file. This grid can be used in Viewmerical or CFD-Post to view Particles solution files.

  • multishot

    *.01.*

    Files related to the first shot.

    *.02.*

    Files related to the second shot.

    And so on.

  • Control files

    *.abort

    Batch mode computation interruption file. See Interrupting a Computation under Fluent Journal Commands.

    cleanup-fluent-*.bat / cleanup-fluent-*.sh

    Script file enabling a kill of the Fluent process and sub processes. This is not required in regular execution mode.

    cleanup-flicing-*.bat / cleanup-flicing-*.sh

    Script file enabling a kill of the Fluent Icing process.

  • Temporary files – Can be safely erased after execution

    fluent-*-error.log

    Temporary log files for Fluent error conditions.

    serverinfo.*

    File used to connect Fluent Icing to the Fluent server, also generated by running FileApplicationsIcing or FileApplicationsServerStart in Fluent main application.

    .cmd.3dview*, *.3dtmp

    Cache files used by Viewmerical.

    *.fsp

    Command file used to launch CFD-Post.

    *.tmp.*

    Temporary grid & solution files used to launch Viewmerical or CFD-Post.