Learning Forum

[ahmedsameir63]

I am conducting a transient Acoustic simulation using 'Coupled field transient ' analysis.

Q1. How can I measure the generated *acoustic pressure in pascal over time (photo)* and *SPL* at a specific point?

Q2. How can I add this boundary condition: *Far-field radiation surface* in `Coupled field transient ' analysis?

 

Thank you for your help.

Regards

[Erik Kostson]

 

 

 

Hi

 

 

 

1. You need to select a mesh node or vertex and create a pressure or spl result there.
2. Far-field radiation surface is only valid for frequency domain analysis (used there for far field results say in harmonic acoustics), so does not exist in coupled field transient (it is greyed out as it is not valid for this type of analysis).
   
   
   All the best
   
   Erik

[ahmedsameir63]

Thank you so much for your reply, 

1. Could you please provide more keywords so I can follow? Do you mean by adding commands (APDL) in the solution section?

 

 

Best Regards

[Erik Kostson]

 

Hi

For ‘You need to select a mesh node or vertex and create a pressure or spl result there:'

Just create a presure result and scope it to a mesh node.

For the second point as I said far field can not be used in transient at all – only is used for frequency domain harmonic acoustic analysis.

Hope all is clear.

Erik