Tesselation error in Lumerical CHARGE

- May 17, 2024 at 10:43 am
  
  S Sehgal
  Subscriber
  
  Using the CAD software, I created a structure of a truncated cone and imported this .stl file in charge. Now in charge, when I am trying to simulate, the simulation is not running and It is stopping at 5% tessellating. I also tried the simulation by reducing the max. edge length to 0.01 under the mesh setting in the charge solver.
- May 17, 2024 at 7:03 pm
  
  Guilin Sun
  Ansys Employee
  
  Not sure what your truncated cone looks like. If it has round top tip, it might be a problem since it will need many more tetrahedral grids. To resolve this, you may need to "cut" a little bit of the tip, say 5 nm.
  If there is any small long gap, it might also cause this issue.
  Adjusting the global mesh constraints or auto-refinement settings might help. More setting description can be found here https://optics.ansys.com/hc/en-us/articles/360034918633-CHARGE-solver-Simulation-object