Getting weird Results for Ansys HEAT

- May 12, 2023 at 10:57 am
  
  Kent Emmanuel Soria
  Subscriber
  
  Hello guys, I am getting weird thermal profiles for simulation in Lumerical FDE. Please I need help how do I resolve this:
- May 12, 2023 at 4:01 pm
  
  Guilin Sun
  Ansys Employee
  
  Do you mean the mesh or the high temperature?
  As you know the HEAT solver uses finite element method. It shows the results on the mesh. If you have something that is not meshed, such as air, it will not be simulated numerically. Instead it is used for its given properties. You can change the min and max edge lengths to make sure the meshing is proper.
  I believe the resulting temperature is too high to be correct since some material properties will change with such high temperature.
- May 12, 2023 at 5:44 pm
  
  Kent Emmanuel Soria
  Subscriber
  
  Why is the resulting mesh having those weird shapes outside of the straight waveguide? May I ask for advice on what specific parameters to tune so that I get a clean result (rectangular waveguide) and not those weird shapes?
- May 12, 2023 at 6:02 pm
  
  Guilin Sun
  Ansys Employee
  
  Because one point or one line of the triangle mesh is attached with the thermal materials (solid). It is not rectilinear mesh. You can export the data and interploate the data only on the thermal materials.
  https://optics.ansys.com/hc/en-us/articles/360034405774-interptri-Script-command

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