ssiim software
 

hello dear CFD-online users!
I'm working on the ssiim software and I've modeled a cylindrical pier in the grid, but during the calculation, I see scouring at the sides of the simulated channel. However, as I reduced the time step, I could not remove this amount of scour, the size of the corners of the grid cells I cut it down, but still did not answer...:confused::confused::confused:
Is there anyone who wants to help me!??:(:(
thanks for your help.