• RE: ifm of in/outflow on top/bottom

    Hi Bohan

    The API is named IfmSetMatFlowRechargeValue. You can find below the documentation for both C++ and Python, respectively:


  • RE: specific storage

    Specific storage (compressibility) follows the standard definitions in hydrogeology.&nbsp;Specific storage describes the change in volumetric water content in an aquifer induced per unit change in hydraulic head under saturated conditions. Along with specific yield, specific storage describes the storage properties of an aquifer. As in unconfined layers specific yield typically exceeds specific storage by far, the influence of this parameter in aquifers with phreatic surfaces is usually negligible.<br> You can find all the parameters described in the online help:<br> http://www.feflow.info/html/help75/feflow/09_Parameters/Material_Properties/flow_parameters.html
  • RE: disapering mesh

    The most probable is that the cache file is somehow damaged e.g, saving was interrupted, etc. You can delete the *.cache file, open the FEM file and FEFLOW will recreate the cache file again. If this does not help, please contact support.
  • RE: PETSc guidance?

    We will make the test cases available soon. Thank you for understanding. What I can say for now is that the performance gain in PETSc with&nbsp; the GPU-accelarated AMG method becomes significantly visible for large FEFLOW models (e.g. at least with 1 million elements). This could be even a factor of 2.
  • RE: PETSc guidance?

    Hi Assaf,<br> Indeed, PETSc may be much more commonly used in Linux OS, but the operation in Windows is also supported (see <a href="https://petsc.org/main/install/windows/">PETSc documentation</a>). You can get a short description of PETSc suite methods being implemented in FEFLOW 7.5 in the <a href="http://www.feflow.info/html/help75/feflow/08_ProblemSettings/equation_system_solver.html">online help</a>. We are planning to extend all this documentation in the near future.&nbsp;In few words, FEFLOW Equation-System Solver page in the GUI includes: (1) PETSc Krylov-subspace solvers (iterative solver in addition to PCG), (2) PETSc library AMG solvers and (3)&nbsp;PETSc library AMG solver with <a href="https://hypre.readthedocs.io/en/latest/solvers-boomeramg.html#">Boomer AMG from Hypre</a>. The latest option supports GPU-accelerated AMG under Linux. GPU implementation is based on CUDA framework, which the support of this is mandatory in the graphic card.<br> If you would like to test this from the console, feflow75c has new arguments: <strong>-solver</strong> [pardiso|pcg|samg|pksp|pamg] and&nbsp;<strong>-gpu</strong> [yes|no].&nbsp;<br> In case there is no possibility to access to Linux instances, FEFLOW GUI (Windows) offers the cloud-deployment with a pre-defined Linux configuration dedicated for GPU acceleration. This is available through the new Cloud Simulation panel in FEFLOW 7.5.<br> <br> In case of more details are required, we can discuss further through the technical support channel (mike.de@dhigroup.com).<br> <br> Cheers<br> Carlos<br> <br> <br> <br> <br> &nbsp;
  • RE: FEFLOW with PiChem (Plug-in)

    Hi Jimmy,
    I would recommend you to get in touch with our customer care team (mike@dhigroup.com) in order to discuss the best manner you can test the software.

    Best regards
    Carlos Rivera
  • RE: ModuleNotFoundError: No module named 'ifm'

    The module ifm is part of the FEFLOW installation. Can you try a script with just the line "import ifm"? If this does not work, there may be something wrong with the environmental variables to define ifm's locaiton.
    I would also recommend you to get in touch with the technical support.
  • RE: Unsaturated Flow - moisture content

    Indeed strange. If p &gt;= 0, then S should be 1. Moisture content cannot be 1, since it is relative to the total porosity.<br> Also if I were you, I would verify whether this is not an effect on any of your visualization settings. Technical support can give you some hints about this.<br> Cheers<br> Carlos
  • RE: outflow temperature

    Yes, of course. You would need to place observation points. You can take a lot of the steps in the Introductory Tutorial below:

  • RE: Adding elevations without using an excel file

    Hi Ander,<br> You are not forced to work with only excel files. FEFLOW has a variety of file formats in 2D/3D and support several industry file formats. The most popular formats within the users are&nbsp;Shapefiles and text files (*.dat). The data is interpolated at each of the FEFLOW nodes, for this operation the user requires a vector file rather than a raster.<br> <br> Our technical support can give you some hints about this. You can reach them at mike@dhigroup.com.<br> <br> Cheers<br> Carlos<br> <br> &nbsp;