open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello!

We are trying to run a coupled Telemac-2d/Gaia simulation. It is the simulation of an estuarine flow with an ocean boundary (imposed surface elevation) and a river boundary (imposed discharge).
A hydrodynamics only simulation (only Telemac-2D) runs without any problem.
It includes a 6 h-long run-up with a ramp starting with a null discharge at the river boundary.
When coupled with a morphological simulation (Gaia) with a sediment concentration imposed on the river boundary, we get the error message displayed below.
The error indicates a hydrodynamics problem, but the Telemac-2d simulation runs smoothly. The initial depth at the river inflow boundary is 3.5 m.
Any suggestion?
Greetings
Paulo


ITERATION 0 TIME: 0.0000 s
GAIA COUPLED WITH: TELEMAC2D
TELEMAC2D INITIALIZED
THE LIQUID BOUNDARIES FILE CONTAINS
288000 LINES WITH:
SL(1) Q(2)
USING STREAMLINE VERSION 7.3 FOR CHARACTERISTICS

PROSOU : IN CARTESIAN COORDINATES, THE CORIOLIS
PARAMETER IS READ IN THE STEERING FILE
IT IS THE KEY WORD 'CORIOLIS
COEFFICIENT', IT IS UNIFORM IN SPACE

DEBIMP: PROBLEM ON BOUNDARY NUMBER 2
STOP 1
GIVE A VELOCITY PROFILE
IN THE BOUNDARY CONDITIONS FILE
OR CHECK THE WATER DEPTHS.
OTHER POSSIBLE CAUSE:
SUPERCRITICAL ENTRY WITH FREE DEPTH
IN THIS CASE GIVE A POSITIVE DEPTH
IN THE INITIAL CONDITIONS
OR PRESCRIBE THE DEPTH AT THE ENTRANCE.

PLANTE: PROGRAM STOPPED AFTER AN ERROR
RETURNING EXIT CODE: 2

Problem overcome. The error was completely unrelated.