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How to simulate Acoustic Reflection coefficient ?

Posted Oct 8, 2022, 3:10 a.m. EDT Structural & Acoustics, Acoustics & Vibrations Version 6.0 1 Reply

Han Nguyen
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Dear all,

I am new to comsol. !

I am using comsol 6.0 and I am a student.

Could someone help me to make a simple acoustic model ?

I want to simulate the reflection coefficient of wall2 as attached picture.

picture:https://photos.app.goo.gl/PehecCNTTVEo8Adr9 https://photos.app.goo.gl/PehecCNTTVEo8Adr9

Thanks and Regards! Han

1 Reply Last Post Oct 31, 2022, 2:23 p.m. EDT
Mark Cops COMSOL Employee

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Posted: 2 years ago Oct 31, 2022, 2:23 p.m. EDT

Dear Han Nguyen,

For modeling reflection/transmission coefficients, it is useful to apply a background pressure field as the excitation. Then, the scattered field can be separated from the incident field. You can see this example in the COMSOL gallery (https://www.comsol.com/model/acoustic-transmission-loss-through-periodic-elastic-structures-1974) for how this is done.

Best,

Mark

Dear Han Nguyen, For modeling reflection/transmission coefficients, it is useful to apply a background pressure field as the excitation. Then, the scattered field can be separated from the incident field. You can see this example in the COMSOL gallery (https://www.comsol.com/model/acoustic-transmission-loss-through-periodic-elastic-structures-1974) for how this is done. Best, Mark

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