Björn Kaiser

Welcome to FEFLOW.

The creation of circles do not exist so far. However, you could draw a 3D loop within the Slice View.

If you are new to FEFLOW I suggest to go through the Introductory Tutorial.

This exercise called Friedrichshagen guides you step-by-step through the Graphical User Interface (GUI) of FEFLOW by setting up a 3D groundwater flow and mass transport model.

https://www.mikepoweredbydhi.com/download/product-documentation#filters={44F569D8-FB28-4ED6-AE2E-192DC0A62123}|&c={9C84B9E1-0E5E-4D93-9355-DDA963D938CA}&o=asc&prefilter={79E8A24B-1EAC-4A6C-A678-999EE0D8865A}|{8BEDA1F4-1938-4FC7-AD3F-D2A6FFC8E7AA}|{9A70C578-9030-44CD-8B58-0A7D9369B9FB}|{6174231F-96A9-4DFD-B62E-595C173BDC1A}

Corresponding data are provided by the Demo Data are provided here: https://www.mikepoweredbydhi.com/download/mike-2017/feflow-demo-data?ref={181C63FF-2342-4C41-9F84-F93884595EF3}

Intersections of Discrete Feature should work in principle. Whether or not numerical instabilities are available depends on the model, but not inevitably on the intersection of Discrete Features.

Try the Scene Library: http://www.feflow.info/html/help71/feflow/mainpage.htm#t=14_References%2FGUI%2FPanels%2Fpanel_scene_library.html

The Python API allows you to make comparison between dac-files. Please find a sample snippet here:

http://www.feflow.info/html/help71/feflow/mainpage.htm#t=13_Programming%2FPython%2Fpython_code_samples.html

The license should be released automatically. I suggest to contact the FEFLOW Support for more details: https://www.mikepoweredbydhi.com/support

Using the Budget History Charts seems to me a useful workflow for you:

http://www.feflow.info/html/help71/feflow/mainpage.htm#t=11_Results%2FBudget_Analysis%2Fbudget_history_charting.html.

If you enable the budget histories, FEFLOW will calculate the budget at each time step and store the budget results as a chart. The calculated budget will be stored at each time-step even if you skip output time-steps written in a dac-file. In contrast, if you use the budget panels and if you skip some output time-steps, you would make error in the budget calculations. The budget panels are calculating on the fly while browsing through the time-steps.

Use a nodal selection along the traces of the BHE. For the Budget histories the following convention of the algebraic sign is important: negative if you get energy out of the aquifer system. In contrast, a positive algebraic sign indicates you injecting heat.

The imbalance for all nodes of the model domain should be check for the residual mass-balance error.

The [b] difference between values [/b] allows you to use the observation at t - t-1. At the moment FePEST does not have a feature which allows you to calculate the difference to a constant reference time. Does IFM / Scripting (C/C++, Python) represents an option for you?

FePEST allows you to use [b]difference between values [/b] as a reference method but I am not sure whether or not the feature provides the method you are looking for. You indicated a head difference (increment). Do you refer to the head difference between two time-steps?

Please download the Demo data from our website:

https://www.mikepoweredbydhi.com/download/mike-2017/feflow-demo-data?ref={181C63FF-2342-4C41-9F84-F93884595EF3}

The download will point to an installer with the FePEST data and other material as well. After installing the Demo data please go into the folder demo\tutorial\pest

Thank you for your mail. Before I give a reply, please provide the following information:

1. Do you intend to represent the underground mine by 1D Discrete Features or fully discretized?
2. Which file-types (e.g. dxf, shp) with what kind of geometry (lines, polygons, points) do you use to generate the 2D Supermesh?
3. Do you get an error or a warning notification in the Log-Panel after you tried to import the file? If yes, what does the message say?
4. Which FEFLOW version are you using?