Acoustic-Structure Interaction with a Perfectly Matched Layer (PML)

Application ID: 23521

This small tutorial model shows how to set up a model with a solid mechanics and a pressure acoustics domain including a common perfectly matched layer (PML). The PML is used to model an open or infinite domain for both the elastic waves and the pressure waves.

Two configurations of PMLs exist (this model describes the first case which is also the most difficult to handle):

  1. One PML should be added when the PML region of two physics touches (as in this model).

  2. If the PML regions do not touch add two PMLs – one for each physics.

This model example illustrates applications of this type that would nominally be built using the following products: