Javier Gonzalez

Hi, the best way to start with this is to watch the ""how to" animation available at the Feflow website.
Let us know if you have further questions after seeing it.

Regards
Javier

Alex,

When you are using triangle, you can choose selectively around which supermesh items to perform the refinement (selected polygons edges, lines, points). However, mesh refinement around points is not selective. One can select them all or none of them.

Do you know if this is related to the triangle algorithm or is something to do with the triangle interface available in feflow?

It was just in front of us. Thanks a lot Peter.
J.

You can switch between both interfaces directly from the menu in Feflow 6 (from classic to standard and viceversa). Settings for discrete features will remain in the model.

Regards

I'm trying to perfor this in the new Feflow 6 interface.

I need to export elevation from a group of nodes. If I select the nodes, and right-click on "elevation" in the Data Panel, the only option to export is "All nodes". Same thing for anything related to nodes selection.

When going to Material Properties there are other options such as "As Center Points..." but this is related to elements.

We have found a workaround to use in the case of elevations, but it requires Excel postprocessing: For the selected nodes a specific boundary coundition is defined (for instance 0 m Hydraulic Head), then data is exported from the BC context menu using the "all nodes" option. As elevations values are always exported for each node, the ones with the specified BC can be identified later using filters.

It would be nice to have the option for exporting only selected nodes directly from Feflow 6.

Regards
Javier

Hi Peter,

Does your post means that when working with unsaturated models, the "storativity (drain/fillable)" parameter on the saturated properties menu, is not considered at all by the program?

I ask because it is activated and is possible to set it anyway.

I Will do it Peter. Thanks

Dan,

My understanding is that in both schemes you can set an upper bound for the maximum time-step allowed. (Temporal & control data -> Specific options for time step control)

In the White papers Vol I, section 1.9, there is a nice discussion about the two schemes. Although it is related with unsaturated modeling, it can give you an insight on comparing both of them.



J.

Hi all,

I've seen the video on how to set depth-dependant EVT in Feflow. I understand that for 3D model the same procedure must be used but in the "In/out flow on top/bottom" parameter.

With understanding purposes I've constructed a very simple square-box, homogeneus, multi-layer model where all the inflow is entering at bottom layer. outflows can occur at top layer by depth-dependent evaporation or surface seepage depending on relative BC magnitude.

Everything works fine as long as seepage occurs. As soon as I raise potential evaporation to that value where all outflow should be caused by evap (so water table should fall below ground surface) the model becomes highly unstable and heads raise to non-logical values (1.0 e+11).

Does this correspond to a highly demanding numerical simulation or there should be an easy solution and something is set wrong??

Thanks in advance!
Javier.