ESTET is a 3-D finite difference code for subsonic, viscous, steady, or transient flows in complex geometries. This code was developed by EDF/Laboratoire National d'Hydraulique. Phenomena that can be modeled include the effects of turbulence, gravity terms, heat transfer, a nonisothermal fluid model, variation of fluid density (high temperature gas flows), and friction at the walls. The implemented finite difference method solves the Navier-Stokes equations coupled with a k-epsilon turbulence model. Structured meshes are built using Cartesian, cylindrical, or orthogonal curvilinear coordinate systems. The time differencing is based on a fractional time step, which allows adapting solvers to different equation operators.
J. M. Chantrel
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