• Re: Elevation from smesh files ?

    Hi Christian,

    Unfortunately, the workflow is unsupported. The workaround is to copy the X,Y,Z information (typically starting after the second row from the file) to a *.dat file.

  • Re: How to find elements which nearest slice-1?

    The latest FEFLOW 7.4 includes a nodal parameter (Auxiliary data) named "Nodal depth". Such as parameter uses as reference the elevation of Slice 1 to compute the depth. You can easily use the information in any expression as commented above.
  • Re: ifmLake plugin


    IfmLake plug-in uses a nodal distribution named "IfmTransfer" with units [1e-4 1/d] to define the transfer coefficients for the lakes. If you can read more details about this implementation in the user manual (page 2).

    Carlos Rivera
  • Re: FePEST bug: simulated mass concentrations at observation points

    Thanks for reporting!
    Regarding to Bug #1, this somehow happens in the following situation: 1) a new param. definition is created as "one layer adjustable and other tied" and 2) a second param. def. is created and tied to the first group. PEST tool complains that you cannot tied parameter to another existing tied param, which is correct! FePEST manages to create the parameters and groups properly at the beginning. But if you edit any parameter, the groups are somehow recreated not fully correct.
    Solution: You correct manually the tied parameter(s) (from group 2) by tidying up to another parameter, which is not being "adjustable" / "calibrable" (from group 1).

    If you need more details, support team (mike.de@dhigroup.com) is aware of the problematic and has some workarounds.

    Apologizes for the inconvenience. We are planning a correction in the next update.

    Happy new year!
    Carlos Rivera
  • Re: Defining In/outflow on top/bottom layer transient values

    Hi Samia,

    Allowing the creation of the material time-stages through the IFM interface is one of the prioritizes for the future release. There are some workaround, but they require few more extra code lines.

  • Re: Introduce gaps in time series via ifm

    Maybe it is worthy for other users: you can work with value = float("nan") and pass this to the API function in order to create the power value. I think a numpy NAN definition should also work.

  • Re: Generating 3D Pilot Points


    did you figure out a solution to the mentioned problem? Otherwise let us talk in detail through the official support channel (mike@dhigroup.com).

    Cheers, Carlos
  • Re: python scripts and spatial head-difference observations

    Hi Stephen,

    Actually FePEST does not use obs2obs.exe, since we have our own implementation. The easiest workflow is to connect the time series of head measurements to an existing observation point in the FEM file. Later in FePEST, you can create an Observation Definition, which depends on head differences (TIME1 - TIME2). By default the head differences are defined based on consecutive temporal records. HOWEVER, you can manipulate later the table, e.g. in Excel, and edit the time column (e.g. TIME - TIME INITIALS or anything else).

  • Re: Problem with Fluid-flux BC (unsaturated model)

    Hi Paul,

    The situation explained is a typical case. FEFLOW uses a backward calculation for the budgets. This means that you impose certain Fluid-Flux value and not necesarily you get the same in the budget panels. The budget calculation is based on the primary solution (heads). As you described, the case is very well observable in unsaturated models. From my experience this happens often when you add water into a very unsaturated profile. You can correct this mistmatch by improving the mesh discretization at the location of the boundary and/or using an analytical formulation for the capacity (Unsaturated Settings in the Problem Settings dialog).

  • Re: Getting node number in a 3D model at slice and Debugging

    Hola Javier,

    Yes. The search in 2D will give you the node number in the Slice 1. The coordinate display is what you have selected in the menu View -> Coordinate system.