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 The information provided may be out of date.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.
Directionally dependent acoustic impedance boundary conditons
Posted Mar 4, 2011, 5:04 p.m. EST Acoustics & Vibrations Version 4.1 1 Reply
Please login with a confirmed email address before reporting spam
I am using the transient acoustics module, and I have two adjacent domains. Domain 1 contains an acoustic source that creates a sound wave which propagates into Domain 2. In Domain 2, the wave reflects off a surface and travels back into Domain 1. Is it possible to assign a Boundary Condition (BC) between Domain 1 and Domain 2, so that the acoustic wave leaving Domain 1 and entering Domain 2 encounters a different impedance BC than the reflected acoustic wave which is leaving Domain 2 and entering Domain 1?
I have already tried assigning an identity pair, but that does not work. You can only assing one Impedance value for the boundary condtion of an identity pair, it's the same as having an interior impedance BC.
I have already tried assigning an identity pair, but that does not work. You can only assing one Impedance value for the boundary condtion of an identity pair, it's the same as having an interior impedance BC.
1 Reply Last Post Mar 10, 2011, 7:17 a.m. EST
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Interesting question. I would also like to know a way to do this....
--
MSc. Acoustics using COMSOL for modelling loudspeakers and room acoustics.
no.linkedin.com/pub/tom-alexander-solg%C3%A5rd/27/600/1b3