TELEMAC-2D - Two-dimensional hydrodynamic
Overflow subsequent to an embankment failure
TELEMAC-2D is used to simulate free-surface flows in two dimensions of horizontal space. At each point of the mesh, the program calculates the depth of water and the two velocity components.
A complete and effective program
TELEMAC-2D solves the Saint-Venant equations using the finite-element or finite-volume method and a computation mesh of triangular elements. It can perform simulations in transient and permanent conditions.
TELEMAC-2D can take into account the following phenomena:
- Propagation of long waves, taking into account non-linear effects
- Bed friction
- Influence of Coriolis force
- Influence of meteorological factors: atmospheric pressure and wind
- Torrent and river flows
- Influence of horizontal temperature or salinity gradients on density
- Cartesian or spherical coordinates for large domains
- Dry areas in the computational domain: intertidal flats and flood plains
- Current entrainment and diffusion of a tracer, with source and sink terms
- Monitoring of floats and Lagrangian drifts
- Treatment of singular points: sills, dikes, pipes.
Amplitude of tidal wave M2 in the English Channel
The algorithms used by TELEMAC-2D are extremely efficient and are constantly being improved in order to incorporate the latest developments made in the field of numerical computations.
A poweful and open environment
TELEMAC-2D offers the user a set of FORTRAN sub-routines that can be modified to meet the specific requirements of each model: specification of initial conditions or complex boundary conditions, link-ups with other modelling systems, introduction of new functions.
A parallel version of the software is also available.
Tidal currents in Atlanta Bay
Integrated into the TELEMAC-MASCARET system
TELEMAC-2D is integrated into the TELEMAC-MASCARET modelling system. This contains a group of programs dedicated to fluid mechanics calculations relating to the environment: 2D and 3D current patterns, waves, sedimentology and water quality.
TELEMAC-2D uses the libraries that are common to all modules of the TELEMAC-MASCARET system. This concerns in particular the use of numerical schemes and high-performance solvers, which are constantly being improved.
In addition, it is easy to link up TELEMAC-2D with another module in the system (computation of wave-induced currents, sediment transport, etc.)
Like all the modules of the TELEMAC-MASCARET system, TELEMAC-2D was developed in accordance with the quality assurance procedures followed in the Electricité de France's Studies and Research Division. The software is supplied with a complete set of documents: theoretical description, user's manual and first steps, validation file, etc.