# Telemac3d¶

Telemac3d solves the Navier-Stokes equations along a three-dimensional (3d) computational grid using a finite element scheme. Telemac3d mounts the tetrahedral 3d mesh from a triangular 2d mesh in a user-defined number of vertical layers. The number of vertical layers to use is defined in the TELEMAC steering (CAS) file. This tutorial walks through the creation of a 2d mesh with SALOME-HYDRO along with boundary and control files. The tutorial also features running a Telemac3d simulation with the files created and plotting results with the ParaVis plugin of SALOME-9.8.0 (a tweaked version of ParaView that is able to read MED files).

A Telemac3d simulation requires similar input files as a Telemac2d simulation and this tutorial uses MED files to define the geometry. In particular, the following files will be created:

• Steering file

• File format: *.cas

• Software: SALOME-HYDRO’s HydroSolver module (alternatively: Fudaa PrePro) or any text editor)

• Geometry file

• File format: *.med or *.slf

• Software: SALOME-HYDRO’s Geometry and Mesh modules

• Boundary conditions

• File format: .*bnd

• Software: SALOME-HYDRO’s HydroSolver module

• File format: *.qsl