How does COMSOL solve the acoustic-structure interaction? Specific details mentioned below.
Posted Sep 7, 2019, 3:52 PM EDT Piezoelectric Devices, Mechanical, Acoustics & Vibrations Version 5.4 1 Reply
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I'm trying to understand how COMSOL solves the acoustic-structure interaction. In particular, I implemented the spherical piezoelectric transducer model, provided as an example (PDF attached for your reference). I understand that at the interface, COMSOL implements the pressure continuity and the velocity continuity conditions. But, it is unclear to me about the exact method the software uses to implement the boundary conditions. Does it use the boundary element method (BEM), or a finite element method (FEM), or a hybrid FEM-BEM method? The physics that this module uses are PRESSURE ACOUSTICS, FREQUENCY DOMAIN; SOLID MECHANICS, and ELECTROSTATICS.
Any fruitful discussion or directing to the related discussion will be much appreciated.