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Posted Tue, 10 Nov 2020 22:04:17 GMT by James Adinata
Hi All,

I have STL Surface Mesh object that I want to use to create a group selection below this surface?

Is there anyone know how to do it?

I can convert this STL file to a DXF or SHP files if needed.

Thanks a lot!

Best,
James
Posted Thu, 12 Nov 2020 20:54:43 GMT by Felipe Gutiérrez
Hi,

In my experience, there's nothing wrong or difficult to work with only .stl files in FEFLOW. In fact, in my thesis I only used this kind of file.

Having said that, I suppose that you have a 'clean' non-manifold surface. Try to close it somehow, and assign region-markers to each enclosed zone. If you're using the tet-gen algorithm, it will generate different groups according to region-markers.
Posted Wed, 18 Nov 2020 00:41:49 GMT by James Adinata
Hi DrGuti,

Thank you so much for your answer.

Do you mind to let me know what software do you use to create the STL surface and tet-gen algorithm?

Best,
James

Posted Wed, 18 Nov 2020 17:04:12 GMT by Felipe Gutiérrez
Sure, I use Rhinoceros 3D as cad solution and pre-process everything related to geometry.

The tetgen algorithm is a built-in option within FEFLOW.

If you have more specific questions don't hesitate to write me.
Posted Wed, 18 Nov 2020 22:12:37 GMT by James Adinata
Hi DrGuti,

Thanks a lot for your reply!

Yes, I will explore the Rhino and ask you if I have more specific questions.

Really appreciate you help!

Best,
James

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