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  1. Dec 03, 2015
  2. May 29, 2015
    • Henry's avatar
      MRF: Separate MRF from fvOptions · 2b9a2adf
      Henry authored
      fvOptions does not have the appropriate structure to support MRF as it
      is based on option selection by user-specified fields whereas MRF MUST
      be applied to all velocity fields in the particular solver.  A
      consequence of the particular design choices in fvOptions made it
      difficult to support MRF for multiphase and it is easier to support
      frame-related and field related options separately.
      
      Currently the MRF functionality provided supports only rotations but
      the structure will be generalized to support other frame motions
      including linear acceleration, SRF rotation and 6DoF which will be
      run-time selectable.
      2b9a2adf
  3. Feb 10, 2015
  4. Feb 09, 2015
  5. Jan 21, 2015
    • Henry's avatar
      Updated the whole of OpenFOAM to use the new templated TurbulenceModels library · 93732c8a
      Henry authored
      The old separate incompressible and compressible libraries have been removed.
      
      Most of the commonly used RANS and LES models have been upgraded to the
      new framework but there are a few missing which will be added over the
      next few days, in particular the realizable k-epsilon model.  Some of
      the less common incompressible RANS models have been introduced into the
      new library instantiated for incompressible flow only.  If they prove to
      be generally useful they can be templated for compressible and
      multiphase application.
      
      The Spalart-Allmaras DDES and IDDES models have been thoroughly
      debugged, removing serious errors concerning the use of S rather than
      Omega.
      
      The compressible instances of the models have been augmented by a simple
      backward-compatible eddyDiffusivity model for thermal transport based on
      alphat and alphaEff.  This will be replaced with a separate run-time
      selectable thermal transport model framework in a few weeks.
      
      For simplicity and ease of maintenance and further development the
      turbulent transport and wall modeling is based on nut/nuEff rather than
      mut/muEff for compressible models so that all forms of turbulence models
      can use the same wall-functions and other BCs.
      
      All turbulence model selection made in the constant/turbulenceProperties
      dictionary with RAS and LES as sub-dictionaries rather than in separate
      files which added huge complexity for multiphase.
      
      All tutorials have been updated so study the changes and update your own
      cases by comparison with similar cases provided.
      
      Sorry for the inconvenience in the break in backward-compatibility but
      this update to the turbulence modeling is an essential step in the
      future of OpenFOAM to allow more models to be added and maintained for a
      wider range of cases and physics.  Over the next weeks and months more
      turbulence models will be added of single and multiphase flow, more
      additional sub-models and further development and testing of existing
      models.  I hope this brings benefits to all OpenFOAM users.
      
      Henry G. Weller
      93732c8a
  6. Dec 10, 2014