Acoustic analysis?

Question

Hi experts,

I want to ask some questions:

* How should we define the fluid size (ellipse size, sphere radius) for acoustic analysis? it is based on the distance between the microphone and the body center or not?
 * How should we use the wrapping method or meshing manual for the body?
 
Thanks.

Alberto Campagna · Answer

Hi Brian,

you can use acoustic cavity mesher to create the fluid mesh both for interior and exterior acoustic problems:

https://help.altair.com/hwdesktop/hwx/topics/pre_processing/meshing/meshing_acoustic_cavity_c.htm?zoom_highlight=acoustic+cavity

This tool has the capability to adapt the mesh size to the frequency range of analysis. Depending on the location of the cavity (interior/exterior) and the b/cs you define, like IE, element size and number of layers can affect the accuracy of the solution.

Hope this helps.

Alberto