March 17, 2023 at 7:29 am
Erik Kostson
Ansys Employee

Hi

  1. This is an old release using the old act extensions, I just wanted you to see the workflow inside mechanical (boundary conditions, etc). Thus the way to do what you want in the current releases is by using the Coupled Field Harmonic system in Workbench – you can have structural (structural region), piezo, and acoustic (fluid) regions together there.
  2. As we said in the coupled field harmonic system we can have structural (structural region), piezo, and acoustic (fluid) regions together there. The spherical submerged body would be a structural region inside the fluid (acoustic region). Again it is best to share topology between all regions (so to get a connected mesh between them) and avoid contacts.

    All the best

Erik