code_saturne is the free, open-source software developed primarily by EDF for computational fluid dynamics (CFD) applications.
It solves the Navier-Stokes equations with scalar transport for 2D, 2D-axisymmetric, and 3D flows, whether steady or unsteady, laminar or turbulent, incompressible, dilatable, or weakly compressible, isothermal or not.
code_saturne (https://www.code-saturne.org/cms/web/ )solves the Navier-Stokes equations for 2D, 2D-axisymmetric and 3D flows, steady or unsteady, laminar or turbulent, incompressible or weakly dilatable, isothermal or not, with scalar transport.
Several turbulence models are available, from Reynolds-Averaged models (a. k. a. RANS models) to Large-Eddy Simulation models. In addition, a number of specific physical models are also available as “modules”: gas, coal and heavy-fuel oil combustion, semi-transparent radiative transfer, particle-tracking with Lagrangian modeling, Joule effect, electrics arcs, weakly compressible flows, atmospheric flows, and rotor/stator interaction for hydraulic machines.
code_saturne is open source software, and is released under the GPL2 licence or above.
code_saturne is portable on all Linux flavors and UNIX platforms tested so far. It runs in parallel with MPI on distributed memory machines (Intel, Cray X series, IBM Power, …). Developed since 1997 at EDF R&D, it is based on a co-located Finite Volume approach that accepts meshes with any type of cell (tetrahedral, hexahedral, prismatic, pyramidal, polyhedral…) and any type of grid structure (unstructured, block structured, hybrid, conforming or with hanging nodes, …).
Meshes may be imported using the CGNS, MED, GMSH, I-Deas, GAMBIT, or Simail formats, and Post-processing output is available in EnSight, CGNS and MED formats. In-situ postprocessing is available using the ParaView Catalyst and Melissa libraries.
code_saturne can be coupled in parallel to EDF’s thermal software SYRTHES (conjugate heat transfer). It can also produce output usable by EDF’s structural analysis software code_aster, in particular in the SALOME platform. SYRTHES and code_aster are developed by EDF and distributed under a GNU GPL licence. The atmospheric model can include chemistry modeling based on the SSH-aerosol library.