Gain evaluation of an acoustic horn / FLOW simulation

Hello

At the beginning of this year, I'm looking at the flow simulation module.

I have performed several calculations on fluid diffusions on nurses with, the results are close to the physical model (gripper by suction cup).

Out of curiosity I would like to print different acoustic horns to record the gain obtained in a deaf chamber and modify speakers.

The boundary condition (input and output) validates the x2  gain but I don't get a value in sound power because I don't power the model correctly.

Has anyone looked into the question to translate a level of Db at the entrance and check the number of DB obtained by the horn at its exit;

I have the whole approach with an EXCEL spreadsheet and the resource of its author, but to pass everything under Solidworks it's more tricky. I keep looking.

Thank you for the possible help and happy new year to you;

Spectrum.


test_ndeg1.jpg

Here is the Word document with all the links.

 


projet_creation_d.docx

the EXCEL file with the form on acoustic horns.


pavillon.xls