Menu

Discussion Forum

New Discussion
Filter

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 The information provided may be out of date.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.

Boundary condition problem

Posted Jan 15, 2012, 4:29 a.m. EST RF & Microwave Engineering, Acoustics & Vibrations, Structural Mechanics Version 4.2 0 Replies

Glenston Miranda
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam


Hi

I'm working on acoustic interaction with structures.
I've attached an image of the model that i have created.

Since im using transient pressure acoustics as the physics i cant use PML.
My first question is what boundary condition will be most appropriate.

I want to eliminate reflections from the walls.
Ive used impedance boundary condition with impedance of steel as the impedance value.
Is this right? Or should i use the cylindrical boundary condition?

My second question is :-Can i place the probe point on the boundary to test for the pressure?
Will the boundary condition override the pressure that the point will receive.

This problem is generally with boundary conditions regardless of physics.
This problem ive been facing with the rf & structural mechanics as well.

Thanks a lot for your time and effort.

Regards
Glenston
0 Replies Last Post Jan 15, 2012, 4:29 a.m. EST
COMSOL Moderator

Hello Glenston Miranda

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