Locating problem areas in a model?

Hi,

I have a large model that converges, but it is not converging to the desired degree of accuracy. Is there a way to determine which areas of the model may be causing problems?

Thanks,

SB

Any ideas?

FEFLOW does not give you the convergence level as a distribution at the time. Thus at the moment you have to somewhat rely on your intuition for identifying problematic areas. It can be helpful, of course, to run the model in transient with a large number of observation wells. Locations that show oscillations will most probably also cause convergence problems in a steady-state solution.

Hi Silverbrook,

a good way to find problematic areas in a model is to view the velocities and the pressure heads.

Another way is to build differences of head and velocities between different time steps to find instabilities in a model.
Also another way is to build differences between different slices.

Hope, this helps.

Best Regards Henilein.