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symmtery in hydrodynamic input data and asymmetry in morphology output

HM
Hanieh Mohamadi Moghadam, modified 5 Months ago.

symmtery in hydrodynamic input data and asymmetry in morphology output

Youngling Posts: 4 Join Date: 8/20/17 Recent Posts

Dear delft3d experts,

I'm using Delft3D 4.01.00 for a while and I keep having this issue with the outputs.

I set up a simple hydro+morph+wave model. The hydro and wave domain are the same size (a rectangle: 500mx300m) with 100 grid cells in x direction and 60 grid cells in y direction. I made linear bathymetry with the slope of 10 degree. The lateral boundaries are Neumann and the offshore boundary is Water Level and no boundary condition is defined for the the land boundary. There is constant wave coming from the offshore (north). Every input in this model has symmetry on the east and west side but in the outputs (cumulative erosion/deposition, depth-averaged velocity,...) there is unexpected longshore current and sedimentation and asymmetry. 

I thought this might be the boundary condition effect so I doubled the size of the wave domain (made the wave domain wider). Unfortunately the issue still exists.

Attached please find the run files.

 

I really appreciate if you help me with it.

Thank you,

Hanieh