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Wall vibration of a 3D Acoustic Domain

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I am Nandha Kumar. S from IIT Madras, and I am doing my masters in Machine Design.

I attend a COMSOL Acoustics workshop taught by you, sir. I have got some doubts sir,

I am analysing a 3D domain of 5 x 3 x 2 sir. And performing wall excitation along the wall of 3 x 2.

  1. I chose the Pressure acoustics Frequency domain
  2. Defined the domain (5 x 3 x 2)
  3. All the other walls are rigid
  4. I chose the air material.
  5. Gave the velocity as 0.1 m/s in normal velocity
  6. Meshed the domain
  7. In the study I gave the frequency value as 70Hz.

When I compute, I get a pressure distribution as 0 sir. Kindly help, what am I missing. and If I want to give boundary condition of dp/dn =1 How to give it in normal velocity boundary condition?



1 Reply Last Post 15 dic 2020, 10:44 GMT-5
Jeff Hiller COMSOL Employee

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Posted: 4 years ago 15 dic 2020, 10:44 GMT-5

Hello Nandha,

Please note that the Discussion Forum is intended for exchanges between COMSOL users. To request support from COMSOL employees, please use support@comsol.com instead, or www.comsol.com/support.

Best regards,

Jeff

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Jeff Hiller
Hello Nandha, Please note that the Discussion Forum is intended for exchanges between COMSOL users. To request support from COMSOL employees, please use support@comsol.com instead, or www.comsol.com/support. Best regards, Jeff

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