Metallic Modeling with Solid and Meshing Between Metal & Dielectric Material Contact

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

I have a two question regarding FEKO. 

 

1. As I understood, FEKO uses two different material modeling : Metallic and Dielectric. Metallic modeling can be applied to surface. So, I need to make region as free space and apply metallic model for Faces. Dielectric for solid or closed surfaces. But, I want to use solid model for metal as well. but the system doesn't allow. In this case, I can manually make metallic material by using dielectric material tap(For example, by putting very large value for relative permittivity)

 

2. 2nd question is regarding I should I manage the boundary when metallic & dielectric material share the faces. As far as I try with simple example only 1 material is allowed for the 1 faces. 

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Answers

  • Mel
    Mel Altair Community Member
    edited April 2020

    1. Why do you want to use a solid metal? The recommended method is a surface definition similar to Example Guide model A-02 in the examples folder.

    A solid model attempting to model a lossy metal (very high conductivity) would require extremely small mesh elements to correctly capture the rapidly attenuating fields. This would drive up the computational resources.

     

    2. Have a look at the aperture coupled patch on finite dielectric, Examples Guide model A-10.

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