Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

solver convergence error in near-field distribution simulation on thin film

Please login with a confirmed email address before reporting spam

I try to simulate the near-field on a thin film in 3D. I use a plane wave emitted from a circular boundary, a PML with scattering boundary condition and a very fine film surface structure incoporated into a 3D object.

Always when I try to solve the setup, I get the following error message:
"Failed to find a solution:
The relative error is greater than the relative tolerance, for the direct solver.
Returned solution has not converged."

I would appreciate it, if someone could tell me what to do, to solve this issue! I tried already to improve the mesh

0 Replies Last Post Sep 13, 2010, 1:47 AM EDT
COMSOL Moderator

Hello Benjamin Händel

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.