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.

difference between low-reflecting boundary and PML

Please login with a confirmed email address before reporting spam

Hi,
I am trying to simulate vibration (acoustic) wave on the surface of a substrate. And I want to reduce the reflection, for which I tried two methods: applying low-reflecting boundary condition or building perfectly matched layer in the model. However the results given by the two different methods are quite different.
Can any one tell the difference between the two? Besides, when I apply perfectly matched layers, does the thickness of the layer matter?
Thank you!

0 Replies Last Post 27.07.2016, 16:23 GMT-4
COMSOL Moderator

Hello Mohan Shen

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.