New features of Telemac-3D version 7.2
Estimated release date: end 2016
Latest article update: 31/08/2016
Main new features of this version 7.2
New and less diffusive distributive advection schemes (as in Telemac-2D version 7.1)
K-epsilon model turbulence model can now be used independently on the horizontal and on the vertical
Culvert modelling as in TELEMAC-2D + new formulation for culverts in TELEMAC-2D and 3D, proposed and tested at Flanders Hydraulics
New or modified keywords
"VELOCITIES OF THE SOURCES ALONG..." (VITESSES DES SOURCES SELON...)
Final S in French for VITESSE (homogeneous with the English keyword + TELEMAC-2D.
"SCHEME OPTION FOR ADVECTION OF VELOCITIES" (OPTION DU SCHEMA POUR LA CONVECTION DES VITESSES)
"SCHEME OPTION FOR ADVECTION OF K-EPSILON" (OPTION DU SCHEMA POUR LA CONVECTION DU K-EPSILON)
"SCHEME OPTION FOR ADVECTION OF TRACERS" (OPTION DU SCHEMA POUR LA CONVECTION DES TRACEURS)
One value per tracer can be given.
When Leo Postma, N or PSI advection schemes are chosen (3, 4 or 5). The following options can be now selected:
1: normal Leo Postma N or PSI (like previous versions),
2: predictor-corrector (see proceedings of User Club 2014),
3: second order predictor-corrector,
4: LIPS scheme (Locally Implicit Psi Scheme).
These 3 keywords can also be used to decide whether the method of characteristics will be strong (1) or weak (2).
For options 2, 3 and 4 the following keyword can also be used:
"NUMBER OF CORRECTIONS OF DISTRIBUTIVE SCHEMES" (NOMBRE DE CORRECTIONS DES SCHEMAS DISTRIBUTIFS)
The default value is 1 (one value for all tracers only). Can be 2, 3, after will probably not be very efficient. Gives less numerical diffusion.
Two other schemes: LIPS and ERIA, meant for dry zones, are still under development and are scheduled for version 7.2.
For more details see post #19861 in the forum (Generalities/Announcements...).
"NUMBER OF SUB-STEPS OF DISTRIBUTIVE SCHEMES" (NOMBRE DE SOUS-PAS DES SCHEMAS DISTRIBUTIFS)
Only for implicit scheme with predictor-corrector.
"CONTINUITY CORRECTION ON OPEN BOUNDARIES" (CORRECTION DE CONTINUITE SUR FRONTIERES OUVERTES)
Changes the free velocities on open boundaries to get a better divergence-free field.
"CULVERTS DATA FILE" (FICHIER DE DONNEES DES BUSES)
Description of culverts/bridges existing in the model.
"NUMBER OF CULVERTS" (NOMBRE DE BUSES)
Number of culverts, tubes or bridges treated as source terms. They must be described as sources in the domain and their features are given in the CULVERTS DATA FILE.
"OPTION FOR CULVERTS" (OPTION POUR LES BUSES)
Option for the treatment of culverts. There are two options in TELEMAC.