Jintao Liu

Hi, although Peter has already answered your question, I would like to post it again for someone who is looking for this link.

Please use this link to download the latest FEFLOW 7.4 version:
https://www.mikepoweredbydhi.com/download/mike-2021/feflow?ref={2BC171FE-7AFA-44A0-9BF8-BC48CEAC27A8}

When you start to install the package, there is one option called [b]FELOW Demo Data[/b].

The package also includes example animations, demo tutorial videos, and third-party software PEST.

By default, the tutorial files will be saved under C:\Users\Public\Documents\DHI FEFLOW 7.4\demo\exercise

Hello Christian,
If your PC is still Windows 7? I have seen this error message many times, one of the reasons is that the user has WIN 7 Pro, in fact, it is not fully tested/supported by FEFLOW 7.4.

Please refer to the release note: https://manuals.mikepoweredbydhi.help/2021/Release_Notes/FEFLOW%20Release%20Notes.pdf

Best,
Jintao

Hello,
Currently, if without using the "3D layer configuration" or using the "TetGen mesh generator", you cannot trigger the options for the unstructured mesh to "physically" pinch out the layers at the same position.

Here is an attached example that my Slice 2 has an elevation of 30m, and Slice 1 is 50m at the beginning.

Without using the "3D layer configuration", I manually changed the elevation of a pit area on Slice 1 to 30 m, it can trigger the processing option for the classic approach "[b]layer-based model[/b]" (with a very thin thickness), so-called [b]"minimum distance"[/b](e.g. 0.1 m) between Slice 1 and Slice 2. That means, in the end, my pit area on Slice 1 has an elevation of 30.1m.

Best,
Jintao

Hello,
Unfortunately, there is no such feature in the GUI, you have to write a script to retrieve the pressure and loop through the entire time steps.

This key function might be helpful:
doc.getResultsFlowPressureValue()

Please refer to https://dhi.github.io/ifm/api.html

Hi Emilia,
sorry, I did not catch that. In FEFLOW, the assignment of different parameters is done separately and will not affect each other. Unless you used the multi-assign(s. attached), then you could use one element selection but assign many parameters at the same time.
Best,
Jintao

Hello Needa,
Please check out our website:

https://www.theacademybydhi.com/courses-and-events-calendar?_ga=2.252056969.167836566.1614104798-1911002182.1600444025#filters={44F569D8-FB28-4ED6-AE2E-192DC0A62123}|&c=Date&o=asc&prefilter={D577D7B9-DF86-41C2-806E-B5B8A54AFBAF}|{D56F27EA-BF2D-4940-9301-761C09FAE796}|{E7455262-D228-415E-AF0D-FD87B61736B1}|{6DF9E637-0A50-4BD6-BFF4-282C2366A486}

One self-paced course is free for everybody: https://www.theacademybydhi.com/course-sessions/getting-started-with-groundwater-modelling-11600061-32?_ga=2.252056969.167836566.1614104798-1911002182.1600444025

You can also join us for these free upcoming webinars:

1) Webinar: Modelling density-driven flow for mining applications with FEFLOW, 10th March at 4pm AEST: https://lnkd.in/g27FmsN

2) Webinar: Modelling density-driven flow for mining applications with FEFLOW, 10th March at 4pm AEST: https://lnkd.in/g27FmsN

3) Webinar: Understanding groundwater quality through numerical modelling, April 28 at 5pm AEST:https://lnkd.in/gZD-dmb

4) Webinar: Estimating the feasibility of geothermal installations through numerical modelling, May 26 at 5pm AEST: https://lnkd.in/gafvqVc

5) Webinar: From model calibration to uncertainty quantification - A roadmap for groundwater modelling, June 23 at 5pm AEST: https://lnkd.in/gUtBxVz


Best,
Jintao

Hi Leo,

It is hard to say without knowing the details of the model. Which solver are you using? How is the quality of your mesh? It might be even due to the inappropriate temporal and/or spatial discretization.

Please refer to the online help:

"The respective fluid, heat, or mass balance is subdivided into flows related to the various boundary-condition types, contributions from distributed sources/sinks (e.g., groundwater recharge), storage capture (negative) and release (positive), and a remaining imbalance term arising from solver resid­ual error and errors due to the spatial and temporal discretization."

(http://www.feflow.info/html/help73/feflow/11_Results/Budget_Analysis/budget_analysis.html)

If you need a further check of the model, please directly contact our support(mike.de@dhigroup.com) to send the model.

Best,
Jintao

You are welcome, thanks for sharing your feedback to everyone

Hi Leo,
I guess your elements selection has multilayer wells(MLW)? Because each MLW is internally composed of a 1D Discrete Feature (DF) + one Well BC.

Hi James,

The 3D interpolation is enabled in the "Link To Parameter” dialog for an appropriate input 3D map, once you are in the editor and you can select: [b]Topology processing ---> [b]handle 3D geometries[/b][/b]

Currently, it only works for nodal data such as Head, elevation....

Best,
Jintao