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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Coupled Field Transient – Acoustic › Reply To: Coupled Field Transient – Acoustic

March 19, 2024 at 3:59 pm
ErKo
Ansys Employee

 

 

Hi

 

Yes viscosity (as given say in Eng. Data for Air and Water material ) provides attenuation, but can be hard to see for low frequencies and small propagation distances in gases.

 

Long time ago I looked into this and below is a summary:

 

 

 

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