open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello everybody !

I'm trying to run a simulation of Telemac2d coupled with Sisyphe but i have deposition due to solid transport at the upstream boundary (see figure attached).

Do you have any ideas to fix this problem? In the boundary condition file or with a keyword in the steering file?

I attached my boundary condition file.
Thanks you in advance
Thibaud