Hi,

I am simulating a non-hydrostatic model with a simple, low-angle-slope bathymetry using 100 z layers and 0.01 mins timestep. I also impose unidirectional 4 cm/s current as boundary condition and uniform-and-constant zero water level boundary on the other end. However, the model dries out (ie. the water elevation becomes equal to the water depth) after 7 mins (a half of smoothing time, 14 mins). The velocity profile shows extremely high value, up to 1000 m/s.
Has somebody encountered this situation before? Any lead is much appreciated.
Please find attached the model set up files and the velocity profiles.

Thanks,
​​​​​​​Rushdi