rodrigo giannoni

I just tryed that and that water table is still flat. When i increase the recharge too much it makes a second water table on the top of the model (flat as well).

Maybe is related to the Van Genuchten parameters? Im using Van Genuchten Modified:

alpha = 0.01,
n = 1.964
m = 0.509
sigma = 3.4

all the K = 1 m/d

all other values are set by default.

or maybe the software is uncapable of representing a water table similar to the topography in a strady state model where the topographic gradients are too high?

Hi Bjorn

I don´t want to replicate exactly the topography, I would like the model to come up with a solution that would do an aproximation of the topography.

When I run my steady state models (not forcing them with fixed Dirichlet BCs) the water table is always a flat line. Even though the model starts completely saturated and the recharge is very important, it ends up with a flat line.

Is there a way to have ondulations of the water table without forcing the model with fixed BCs?

Is Feflow capable of doing a water table that replicates de topography in a medium with large variations of slope (mountains like the Andes or the Alpes, for exemple), and where the aquifer is composed consolidated rocks?

I have try with saturated models (and all of it´s variations), unsaturated models (and all of it´s unsaturated parameters from Van Genuchten), and nothing!

Any ideas ?