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Christian Helweg Project Manager Groundwater and Geoscience

Christian Helweg

Joined: 1/20/2019

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  • Re: How to get all surface nodes of 3D elements selection?

    Fri, 18 Sep 2020 07:58:01 GMT – How to get all surface nodes of 3D elements selection?
    Another time, If you only want the nodes on the outside border (surface) of an element selection you can use convert to "Border node selection".
  • Elevation from smesh files ?

    Wed, 16 Sep 2020 12:13:09 GMT – Elevation from smesh files ?
    Hello. Can smesh files be used for setting elevation of nodes in feflow ?. 
  • Re: Constructions in unstructured models

    Mon, 30 Sep 2019 08:00:49 GMT – Constructions in unstructured models
    Thanks for the suggestions.. :)
  • Constructions in unstructured models

    Fri, 13 Sep 2019 13:40:09 GMT – Constructions in unstructured models
    We are often making traditional layered feflow models with complicated structures, such as tunnels and caverns. If the geology is complicated and the structures are too, the layered approach becomes difficult and thus we are looking towards unstructured models. In this case the geology may be imported from a geological modelling software, but what about the structures ?. We usually start with a 3D autocad file, but as I understand it, feflow (tetgen) can only use PLCs to make the grid ?. Is this correct ?. If the structure is simple, its easy enough to make a PLC by hand, but when it's a long winding tunnel, this is not a viable option. Can anyone suggest a way of getting a 3D autocad file into feflow to be used for construction of an unstructured mesh. We would probably need to simplify the structure before using it for meshing and often there are many points in the Autocad 3D file that does not conform to PLC rules due to inaccuracies in the drawing. Any suggesions will be appreciated.

    Regards Christian
  • Does FeFlow support Using GPU for Feflow calculations ?

    Tue, 02 Oct 2018 10:24:25 GMT – Does FeFlow support Using GPU for Feflow calculations ?
    It seems mike-21 is able to use GPUs for modelling calculations with a very big reduction in model run times (factor 100-300). https://www.mikepoweredbydhi.com/products/mike-21/mike-21-gpu

    Is this also possible in FeFlow ?

    Regards Christian
  • Re: Thickness of 2D discrete feature

    Mon, 01 Oct 2018 08:57:15 GMT – Thickness of 2D discrete feature
    Thanks. Have a nice trip. Christian
  • Re: Demo video on Evapotranspiration

    Wed, 26 Sep 2018 12:33:51 GMT – Demo video on Evapotranspiration
    I believe that the bracket refers to an if, then ...else sentence. In feflow expression builder you can select "if" and it gives you the structure.

    Christian
  • Thickness of 2D discrete feature

    Wed, 26 Sep 2018 11:27:36 GMT – Thickness of 2D discrete feature
    Hi. Simple question but havn't found description in FeFlow documentation. Does geometry.thickness of a 2D discrete feature indeed refer to thickness of the feature, e.g. thickness of fault zone? and when using Hagen-poiseulle law, what is geometry.thickness used for, considering that hydraulic aperture is also a parameter?

    Regards Christian
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