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

Erik Kostson
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: