Reply To: Modelling absorptive silencers

[Federico]

Hello, 

are you only interested in the attenuation of the acoustic energy? If so, Fluent allows you to set up impedance boundary conditions 7.7. Boundary Acoustic Wave Models. Read through the link to understand the requirements, limitations and see if it applies to your case.

Depending on which acoustics model you use, you can set up point monitors or microphones (for FW-H), to measure the effects of the silencer.