The Acoustic-Solid Interaction, Time Explicit multiphysics interface (
) combines Pressure Acoustics, Time Explicit and Elastic Waves, Time Explicit together with the Acoustic-Structure Boundary, Time Explicit multiphysics coupling. The physics interface is available for 3D and 2D geometries.
When a predefined Acoustic-Solid Interaction, Time Explicit interface is added from the
Acoustics>Acoustic-Structure Interaction branch of the
Model Wizard or the
Add Physics windows, the
Pressure Acoustics, Time Explicit and
Elastic Waves, Time Explicit interfaces are added to the Model Builder. In addition, the
Multiphysics Couplings node is added, which automatically includes the
Acoustic-Structure Boundary, Time Explicit multiphysics coupling.
When a predefined multiphysics interface is used, for example Acoustic-Structure Boundary, Time Explicit, the
Selection on the multiphysics coupling is automatically set to
All boundaries. In this way, the multiphysics coupling is automatically active on all boundaries with
Pressure Acoustics, Time Explicit on one side and
Elastic Waves, Time Explicit on the other.
For example, if the single interfaces are added, COMSOL Multiphysics adds an empty Multiphysics Couplings node. You can choose the available multiphysics couplings, but you need manually to select on which boundaries they need to be applied, or select
All boundaries to recover the predefined behavior.
The Acoustic-Structure Boundary, Time Explicit multiphysics coupling is described in the
Multiphysics Couplings chapter. Note that a pair version of the multiphysics coupling exists that can be used for assemblies:
Pair Acoustic-Structure Boundary, Time Explicit.
Physics nodes are available from the Physics ribbon toolbar (Windows users),
Physics context menu (Mac or Linux users), or right-click to access the context menu (all users).