Menu

Discussion Forum

New Discussion
查找

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.

Error Acoustic Diffusion equation

Posted 2020年6月22日 GMT-4 22:25 Acoustics & Vibrations 2 Replies

Carlos Galeano
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi everyone, I am using COMSOL - Acoustic Diffusion interface with room coupling intenal BC. I found this error:

Undefined variable. - Variable: comp1.ade.room5.h

I am looking for "h" room variable but i can't find information about it. Someone can give me some tips about this type error, or about this "h" variable.

Thanks in advance.

Carlos G.

2 Replies Last Post 2020年6月25日 GMT-4 10:52
Alexis Prel
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 4 years ago 2020年6月24日 GMT-4 06:30

Hi Carlos,

Have you tried searching for this variable in your model ?

You can do Ctrl + F then type h . This might give you too many hits, so try with room5.h

Hi Carlos, Have you tried searching for this variable in your model ? You can do `Ctrl + F` then type `h` . This might give you too many hits, so try with `room5.h`
Mads Herring Jensen COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 4 years ago 2020年6月25日 GMT-4 10:52
Updated: 4 years ago 2020年6月25日 GMT-4 11:30

Hi Carlos

You need to apply the wall conditon (sub-feature to the room) also on the boundary where you apply the room coupling. Wall features have to be applied to all boundaries in a room.

Best regards Mads

Hi Carlos You need to apply the wall conditon (sub-feature to the room) also on the boundary where you apply the room coupling. Wall features have to be applied to all boundaries in a room. Best regards Mads

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