Feko: ERROR 40619: Intersecting elements found

Jizheng He
Jizheng He Altair Community Member
edited April 2 in Community Q&A

Hi, I am having the error ERROR 40619: Intersecting elements found with my reflector when running the FEKO solver.

  • I have one single 3D element created by subtraction, therefore not needing to union anything.
  • The reflector is aluminum, so I set the region of the reflector to free space and added aluminum with thickness = actual thickness to all faces of the reflector.
  • The meshing is done by default mesher with meshing size standard and custom growth rate = 10.
  • I checked Mesh > Find > Clashing Geometry, Mesh > Find > Intersecting Triangles, etc. and all of them yields negative.
  • Model Status is valid.
  • The videos in this post seems to be obsolete. The POSTFEKO viewing-the-mesh technique is also not practical since my model has ~2M triangles and ~7k lines of "intersection found" messages in my .out file. 

What is the cause of this problem? Why is it not validated by Mesh > Find tools? 

P.S. My reflector:

image

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Answers

  • Jizheng He
    Jizheng He Altair Community Member
    edited April 2

    Seems like using curvilinear meshing and enabling high-order features in MoM solver settings work. The mesh triangle count decreases from ~2.5M to 10k.

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