open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,
I work on morphodynamic simulation of flash flood in steep river (slope is up to 18 %). I use FVM - HLLC scheme for hydrodynamic simulation and MPM formula for bedload and no suspended load. I observe oscillations in bed evolution during high discharge (see pic01). I tried different bedload formulas, sediment diameter, smaller nesh size, but nothing worked. I attached simulation files. I also attached t2d result file in one time step (res_t2d). Can anybody check my files please? I am still not sure if problem is in t2d or in sisyphe.

And another question is about v8p0. I have the problem with sisyphe result file similar to one in this topic:
www.opentelemac.org/index.php/kunena/17-...simulation-using-fvm
It works well only in v7p2. So to postproc I need to use t2d result file.

There are all files: ufile.io/x9t3d

Michal