Gianmarco Dio Egr. ing.

Hi Alessandro

I did it one by one. I had to model 204 BHE.
I will appreciate a lot any shortcut.

Thanks
Gianmarco

Hi Alice
I don't understand if you are trying to simulate the exchanges between the river and the groundwater reservoirs or if you are trying to simulate the exchanges between the groundwater reservoirs and the soil system.
To help me to understand you should give me informations about the water table you are modelling.
If your water table doesn't touch the surface, it's impossible that water can leave the model via 3rd kind B.C. unless the nodes on which you set the 3rd kind B.C. represent a draining stream bed.

I modelled a river basin of the same dimension: the model simulates only saturated flows, but the exchanges with the rivers are obtained coupling a hydrodinamic surface water model (MIKE11) with the groundwater model (feflow) via 3rd kind B.C.. In my model the water exchanges (through the unsaturated zone) between the groundwater systems and the soil system are computed by MACRO (LARSSON & JARVIS, 1999) and then applied to feflow as net water inflow on the top slice. MACRO calculates coupled unsaturated-saturated water flow in cropped soil basing on pedologic, climatic and cultivation data.

If you want you can give me your e-mail address so I can send you my last publication on that subject (pdf 4500 kB).

Bye
Gianmarco

Hello

Try a head BC instead of flux on the landward margin.

Good luck

Gianmarco

Hi Didier

you should use a first kind B. C. for the contaminant concentration in the river water. Eventually you can put a constraint to avoid the mass tranfer from the aquifer towards the river.

Good luck

Gianmarco

Hello Hector

It seems that feflow doesn't like the isles, even when you wonna use them to apply some element property to your model.
Try this way: split your polygon originally including the isles so that the latter will be no more surrounded by only one polygon. This should work.

good luck

Gianmarco

Hy Johannes
sorry but I think your ratio more than unrealistic, is actually impossible in plain - parallel layered sedimentary deposits.
Are those deposits strongly cemented and vertically fractured ? If that is not your case, check your boundary conditions or if a 2D vertical modelling is really suitable.
Yours
Gianmarco

Hello Matteo
I don't think that feflow is suitable to model a standing column well like that you posted. In that case the most relevant process to simulate is the convection flow inside the well pipe.
However, perhaps you could find interesting the feflow simulation of an open loop comprising two wells, one for pumping and the other for injecting water after heat exchanging. The following are the links
http://www.regione.emilia-romagna.it/wcm/geologia/canali/geotermia/progetti/01_geotermia_rer/01_caso_studio.pdf
http://www.regione.emilia-romagna.it/wcm/geologia/canali/geotermia/progetti/01_geotermia_rer/03_spunti_riflessione.pdf
If you are interested I can send you or upload the .fem files of the simulations.
Best luck. Gianmarco

Hello Alberic

Why don't you try with a 2D horizontal model?
Good luck
Gianmarco

Hi modelnewer
a .pow file is a simple text file that you can import and open directly in excel (for example).
Bye

Hi Vlad
There are many ways to do it.
One could be the following:
open the shape file into arc view;
add the x and y fields to the attribute table;
save the file;
open the .dbf file (comprised in the shape files) with excel;
keep only the x, y and value columns;
save the file as text with the .trp extension.
That's all

good luck
Gianmarco