This manual is a first approch to the software TELEMAC-2D. It tries to permit a easier reading of the TELEMAC user's manual and the running of simple case.
- Bottom friction.
- Influence of the Coriolis force.
- Meteorological phenomenum like atmospheric pressure and wind effects.
- Subcritical and supercritical flows.
-Influence of the vertical gradiants of temperature and salinity.
- Dry areas in the computing domain : dry banks or floody zones.
- Current transport and dispersion of markers.
2. THEORICAL ASPECTS
TELEMAC-2D software solve the next four hydrodynamic equations:
- dynamic on x :
-dynamic on y :
- markers conservation :
on these equations, h [m] is the water level,
T [g/l or °] the passive marker,
g [m²/s] the gravity,
[m²/s] the speed diffusivity coefficients of the marker,
Z [m] the freesurface level,
t [s] the time
x,y [m] the spacial coordinates.
3. IN AND OUT FOLDERS
For a computation, TELEMAC-2D software needs differents folders before running the computation and delivers others at the end the calculation. Some of these folders are optionnal ones. Next, the most important ones:
His name has to be written on this folder with the key word : FICHIER DES PARAMETRES.
This folder has to be written in the parameter folder with the key-word : FICHIER DE GEOMETRIE.
This folder is called with the key-word : FICHIER DES CONDITIONS AUX LIMITES.
This folder is called with the key-word : FICHIER FORTRAN.
NUMERO DU PREMIER PAS DE TEMPS POUR LES SORTIES GRAPHIQUES, which permits to determine the step time when the results began to be stocked
PERIODE POUR LES SORTIES GRAPHIQUES, which determine the result step time;
VARIABLES POUR LES SORTIES GRAPHIQUES which shows the variable stocked in the result folder.
This folder should be called by the key-word: FICHIERS DES RESULTATS.
4. HYDRODYNAMIC SIMULATION
- COTE CONSTANTE : the free surface level is initialisated at the value linked with the key-word COTE INITIALE
- HAUTEUR NULLE : the free surface level is the bottom level.
- HAUTEUR CONSTANTE : the height free surface level is fixed by the key-word HAUTEUR INITIALE.
These explainations are supposed to permit an easier readding of the TELEMAC-2D user manual. They could be used to realise very simple simulations, using principaly the default value of numerous key-words. The comprehension of all the variables used by TELEMAC-2D software and the knowlendge how to well-use them is learned by studying more complex case. So, the method used is different from each case studied. The comprehension of this software is simplify if we could have old studied cases to see methods used.