Carlos Andres Rivera Villarreyes Business Owner - FEFLOW

Hi Paolo,

In FEFLOW, the overall thermal conductivity () is defined as a weighted arithmetic mean of the thermal conductivities of the fluid and solid phases as follows:


being a function of material porosity (ε ), saturation (), thermal conductivity of the solid phase (minerals, ) and thermal conductivity of the fluid (water, ). Such as representation of the overall thermal conductivity considers that the thermal conductivities of the fluid and solid phases occur in parallel (see FEFLOW's Book from Diersch, 2013).
The fact that you are solving an unsaturated-flow model, FEFLOW uses the Richards' equation. The parametrization for the flow part requires a Unsaturated-Flow Porosity. This is the total porosity and not the effective porosity. In the case of the heat transport, we have a second porosity, which is only effective for the heat transport. Please make sure that both values are consistent in your model set-up.

In case you have any question, I would recommend you to approach FEFLOW Customer Care at mike@dhigroup.com.

Best regards
Carlos Rivera

Hi Maria,
Demo files are not part of the stand-alone FEFLOW software installation. You need to download and install the demo files separately. The official sites is https://support.dhigroup.com/download/MIKE-latest/. For the case of FEFLOW, you will find the data under "FEFLOW Demo Data 10.0".

Best regards
Carlos Rivera
 

Thanks for posting, Alberto.
This is a current bug. A correction will be published in the next update. You can use this option instead menu Edit -> Add Supermesh Elements.
Best regards
Carlos Rivera

Hi Pablo,
It is part of the documentation. You can find the description of the new page EOS under
https://download.feflow.com/html/help100/feflow/mainpage.htm#t=08_ProblemSettings%2Fequation_of_state.html

Best regards
Carlos

Dear Dario, This was an old bug on Microsoft Access, which caused FEFLOW to crash. A better handling has been implemented already years ago, you should try to update your FEFLOW installation. If this problem persists, please reach out technical support at mike@dhigroup.com. Best regards Carlos

Hi Cheng Yi, The easiest is to export the information from the History Charts. You just need a right-click, then Properties and choose the curve to be exported. Cheers Carlos

Thanks for the update Martin. Please get in touch with our customer support (mike.de@dhigroup.com). Cheers Carlos

Hi Martin, If you have the latest FEFLOW 8.1 version, I would strongly recommend not to use the old plugin. The functionality of connecting the wells and define pairs injection-production via an open-loop system are now available directly in the FEFLOW GUI. The functionalities are accessible through the geothermal extension of the Well Manager. You can take a look on this short demo video: https://www.youtube.com/watch?v=3l1BLLYeRRs Feel free to reach out FEFLOW support to walk you through the new features. Best regards Carlos

Hi Emilia, I think you are mixing up different FEFLOW versions. In toolbar with the multiple option to control the location and distance of the slices, it only supported in the latest FEFLOW versions. Best regards Carlos

Hi Pavel, Unfortunately, this is not supported via the IFM interface (yet). Regards Carlos