Menu

Discussion Forum

New Discussion
Filtra

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

meshing problem for power flow with a distorted wavefront

Posted 31 mag 2012, 10:19 GMT-4 RF & Microwave Engineering, Mesh Version 4.2a 0 Replies

Hongtao Zhang
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,


My model is to calculate the R/T coefficients of two parallel gratings with an air gap between them. I obtained a correct result when I used a coarse meshing size. But this result is insufficient accurate for me.


However, there appears a distorted wave front for some specific parameters when I further fine the meshing size. (even I guess this distorted wave front may be correct). I use PML+power flow at two boundaries to calculate the R/T coefficients. I found the COMSOL can not provide a correct R/T coefficient in this circumstance.


I try to change the meshing size and different solvers. But they did not work for this problem.

I attached the code, several graphs and an explaination in this message.

Any suggestions are welcome.


thanks!

Hongtao



0 Replies Last Post 31 mag 2012, 10:19 GMT-4
COMSOL Moderator

Hello Hongtao Zhang

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.

Suggested Content