Hi,
Often, especially when doing dam break studies, I find that i get a few cells (one or two) that never get stable and is reported with WSEL errors while computing. I understand that there are several opportunities to get rid of these errors: Use breaklines, change cellsize, etc., and often i reduce the time step (which solves the issue). But I have been wondering if it is any need to do these changes to get rid of erros in just a few cells? How much does errors in a few cells effect the computation in the rest of the mesh? Is it OK to have a few cells constantly giving errors when the rest of the mesh seems fine, or should all WSEL erros be dealt with?
Thanks in advance