After 17 years of commercial distribution, the software suite TELEMAC, dedicated to free surface flows, enters now in the second year of its freeware and open source era. We thank our more than 1,700 users for joining us and establishing TELEMAC as a world standard.

Initially built at Electricité de France, where it is still an important research project, TELEMAC is now managed by a consortium of core users:

BundesAnstalt für Wasserbau (BAW, Germany)
Centre d’Etudes Techniques Maritimes et Fluviales (CETMEF, France)
Daresbury Laboratory (United Kingdom)
Electricité de France R&D (EDF, France)
HR Wallingford (United Kingdom)
Sogreah (now in Artelia group, France)

TELEMAC is used by most partners for dimensioning and impact studies, where safety is prevailing and, for this reason, reliability, validation and a worldwide recognition of our tools are of utmost importance. As a consequence and to improve the access to TELEMAC for the whole community of consultants and researchers, the choice of freeware and open source has been made. Anyone can thus take advantage of TELEMAC and assess its performances, and will find necessary resources on this website. However the quality of assistance, maintenance and hotline support are also very important to professional users, and a special effort has been made to offer alternatively a broad range of fee-paying services.

Among many new interesting features, here is a list of novelties in version 6.1:

• Internal coupling between Telemac-2D or 3D and Tomawac
• Bed roughness prediction by Sisyphe for Telemac-2D
• A tidal model around France for boundary conditions in Telemac-2D
• Updated Finite Volume options in Telemac-2D
• Thompson boundary conditions now work in parallel in Telemac-2D
• New tidal flats version of advection schemes, now independent of numbering (for Sisyphe, Telemac-2D and 3D)