Code_Saturne is described as '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 scalars transport if required' and is an app in the education & reference category. There are more than 10 alternatives to Code_Saturne for Windows, Linux, Mac and Web-based. The best Code_Saturne alternative is COMSOL Multiphysics. It's not free, so if you're looking for a free alternative, you could try Elmer or Calculix. Other great apps like Code_Saturne are SimScale, OpenFOAM, Code_Aster and ANSYS Fluent.