TFSF excitation with angle diverge

- July 18, 2024 at 11:44 am
  
  areej al-hamadani
  Subscriber
  
  Hi Dear,
  I have run simulation to study the scattering from metaparticle using TFSF with propagation angle 60 in TE and TM mode, the TE mode works fine but when I run the TM mode it diverges. so could you please help me modify my input file.
  Best
  Areeg
- July 19, 2024 at 6:53 pm
  
  Amrita Pati
  Ansys Employee
  
  Hi Areej,
  The first step in any divergence issue is to identify if it is due to the PML boundaries or if it is a stability issue. I will recommend you to visit this page: Troubleshooting diverging simulations in FDTD. You can change all the PML boundaries to Metal boundaries and let me know if the simulation converges or not.
  Regards,
  Amrita
- July 22, 2024 at 8:20 am
  
  areej al-hamadani
  Subscriber
  
  Hi Amrita,
  thank you so much for your advice, I will try that and see what I will get, I wantted to add that I run it for a range of wavelength and each file with single wavelength it works fine from 455 to 615 and start t diverge after that. any way I will try what you recomended and see.
  
  Best
  Areeg