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  • Andrew Heather Andrew Heather andy
  • Gabriel Barajas Gabriel Barajas barjasg
  • Johan Roenby Johan Roenby johan_roenby
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10 authors
  1. Jan 07, 2017
    • Henry Weller's avatar
      TDACChemistryModel: Added support for variable time-step and LTS in ISAT · 923350fa
      Henry Weller authored 
      New reactingFoam tutorial counterFlowFlame2DLTS_GRI_TDAC demonstrates this new
functionality.

Additionally the ISAT table growth algorithm has been further optimized
providing an overall speedup of between 15% and 38% for the tests run so far.

Updates to TDAC and ISAT provided by Francesco Contino.

Implementation updated and integrated into OpenFOAM-dev by
Henry G. Weller, CFD Direct Ltd with the help of Francesco Contino.

Original code providing all algorithms for chemistry reduction and
tabulation contributed by Francesco Contino, Tommaso Lucchini, Gianluca
D’Errico, Hervé Jeanmart, Nicolas Bourgeois and Stéphane Backaert.
      923350fa
    • Henry Weller's avatar
      Rationalized the keyword to specify a file name in a dictionary to 'file' · 78a39643
      Henry Weller authored 
      e.g. in tutorials/heatTransfer/buoyantSimpleFoam/externalCoupledCavity/0/T

    hot
    {
        type            externalCoupledTemperature;
        commsDir        "${FOAM_CASE}/comms";
        file            "data";
        initByExternal  yes;
        log             true;
        value           uniform 307.75; // 34.6 degC
    }

Previously both 'file' and 'fileName' were used inconsistently in different
classes and given that there is no confusion or ambiguity introduced by using
the simpler 'file' rather than 'fileName' this change simplifies the use and
maintenance of OpenFOAM.
      78a39643
    • Henry Weller's avatar
      triSurfaceMesh: Added support for specifying the tri-surface file name: · 80e22788
      Henry Weller authored 
      e.g.

motorBike
{
    type triSurfaceMesh;
    file "motorBike.obj";
}

Based on patch provided by Mattijs Janssens
Resolves part of bug-report https://bugs.openfoam.org/view.php?id=2396
      80e22788
  3. Jan 05, 2017
  5. Dec 27, 2016
  7. Dec 19, 2016
    • Henry Weller's avatar
      functionObjects::volRegion: Improved parallel efficiency · 842aa71e
      Henry Weller authored 
      Based on patch contributed by Kevin Nordin-Bates
Resolves bug-report https://bugs.openfoam.org/view.php?id=2401
      842aa71e
    • Henry Weller's avatar
      reactingFoam::setRDeltaT: Add support for limiting the local time-step by the reaction rates · d36d8e37
      Henry Weller authored 
      e.g. in the reactingFoam/laminar/counterFlowFlame2DLTS tutorial:

PIMPLE
{
    momentumPredictor no;
    nOuterCorrectors  1;
    nCorrectors     1;
    nNonOrthogonalCorrectors 0;

    maxDeltaT       1e-2;
    maxCo           1;
    alphaTemp       0.05;
    alphaY          0.05;
    Yref
    {
        O2          0.1;
        ".*"        1;
    }
    rDeltaTSmoothingCoeff 1;
    rDeltaTDampingCoeff 1;
}

will limit the LTS time-step according to the rate of consumption of 'O2'
normalized by the reference mass-fraction of 0.1 and all other species
normalized by the reference mass-fraction of 1.  Additionally the time-step
factor of 'alphaY' is applied to all species.  Only the species specified in the
'Yref' sub-dictionary are included in the LTS limiter and if 'alphaY' is omitted
or set to 1 the reaction rates are not included in the LTS limiter.
      d36d8e37
  9. Dec 16, 2016
  11. Dec 15, 2016
    • Henry Weller's avatar
      Rationalized heat release rate functions · 1a2c77ab
      Henry Weller authored 
      Combined 'dQ()' and 'Sh()' into 'Qdot()' which returns the heat-release rate in
the normal units [kg/m/s3] and used as the heat release rate source term in
the energy equations, to set the field 'Qdot' in several combustion solvers
and for the evaluation of the local time-step when running LTS.
      1a2c77ab
  13. Dec 14, 2016
  15. Dec 13, 2016
  17. Dec 12, 2016
  19. Dec 09, 2016
  21. Dec 07, 2016
  23. Dec 06, 2016
  25. Dec 05, 2016
  27. Dec 04, 2016