Error 3849: Wrong specification of the medium for a metallic triangle

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

I get the following note:

Error 3849: Wrong specification of the medium for a metallic triangle

What does this mean?

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Answers

  • JIF
    JIF
    Altair Employee
    edited June 2017

    This error could occur when a metallic triangle is embedded inside a dielectric but a Union was not made of the two parts. The union operation is required to ensure correct connectivity and region information for faces and wires.

    The *.out file will show the triangle number that triggers the error. The triangle number can be used with the Find elements tool in POSTFEKO to see the location (triangle) that triggers the error (use CTRL+F).

     

    To reproduce this error, for example in CADFEKO do the following:

    • Create a dielectric cuboid. Inside the cuboid create a small PEC surface (polygon or rectangle)
    • There would now be 2 parts in the geometry tree.
    • Do not Union the parts.
    • Create mesh (after choosing some frequency)
    • Run.

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