Andrés Torrealba

I forgot to say that besides the above i receive another message saying "Impossible to load postprocessor file!".

Best regards

Andrés T.

I've been working on a 2D vertical model (unsaturated zone and transient flow). Recently I ran the model without any trouble (no warnings on the log messages dialog). Then I tried to open the results file, but I got a message saying "Unexpected file data are found! Terminating..." and that's all. I don't know what's the problem.
If anyone knows, please answer to this topic.

Best regards

Andrés T.

Thanks Chris for your support.
I'm trying to simulate a playa/sabkha groundwater flow. I want to add on an exponential function between the evaporation rate and the water table depth, i.e. ET(z_wt)=A*exp(-B*z_wt). I'm working on a 2D vertical model with unsaturated zone.
I was thinking to use the source/sink stuff in order to set up the evaporation condition. Recently I've been trying to use a pressure BC  on the top of the model (no good results yet), but i've realized that i can't use a power function to set a time-variable pressure BC.
I will continue trying.

Best regards

Andrés T.

[quote author=Peter Schätzl link=topic=278.msg635#msg635 date=1190303541]
For a vertical model, the situation is more complex: You cannot use the equation editor for a 2nd kind boundary condition in the moment. The only way I could imagine is using a row of elements with a fixed size (height) on top. Then you could use the source/sink term in material properties for recharge. You'd have to think again about the different values in the equation then, too.
[/quote]
Thanks Peter for your help. It seems to me that I didn't understand very well your previous suggestion respect to using a row of elements with a fixed size on top. Would you be more precise, please?
I'm working with an unsaturated aquifer model. How can I know the depth of the water table in every time step. In the editor i can only use "Head" or "Saturation" as known variables, but i need to use only the pressure term of total head (H=h+z) in order to use an evaporation expression as a function of the water table depth, i.e. ET=ET(Z_wt). Any information will be appreciated.

Best Regards

Hi Peter!

Thak you for your support.
The video that you recommended is applied to an horizontal 2D problem?
I'm working on a vertical 2D flow and mass problem.

Best regards

Maybe someone can help me sending a .fme file of a user-defined formula. That would help me to learn the FEMATHED syntax.
I'll be grateful.

Hi

I'm trying to set up an evaporation BC at the surface of a 2D vertical model. I would like to use a depth-dependant evaporation rate, but I don't know how to edit the formula with the "formula editor".
If anyone has experience on this matter, please send me more information.

Andrés T.