• Henry's avatar
    Updated the whole of OpenFOAM to use the new templated TurbulenceModels library · 2aec2496
    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
    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