|  Acoustic Streaming for Pressure Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency-Stationary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency-Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Streaming for Thermoviscous Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency-Stationary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency-Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Piezoelectric Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Piezoelectric Interaction, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Modal Reduced Order Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Poroelastic Waves Interaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Shell Interaction, Frequency Domain1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Shell Interaction, Transient1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Modal Reduced Order Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid Interaction, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid Interaction, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Modal Reduced Order Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid–Poroelastic Waves Interaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Compressible Potential Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Stationary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Euler, Boundary Mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Euler, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Euler, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Navier–Stokes, Boundary Mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Navier–Stokes, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Navier–Stokes, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Potential Flow, Boundary Mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Potential Flow, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 1D axisymmetry and 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Potential Flow, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 1D axisymmetric and 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Piezoelectric Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Poroelastic Waves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Solid Mechanics (Elastic Waves) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Mode Analysis (with the Port condition in 3D) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency, Prestressed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Prestressed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Stationary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Diffusion Equation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenvalue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Stationary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Ray Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Tracing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pipe Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pipe Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Asymptotic Scattering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Boundary Elements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Boundary Mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Mode Analysis (for Ports) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 1D axisymmetry and 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Kirchhoff-Helmholtz |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Modal Reduced Order Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 1D axisymmetric and 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Thermoviscous Acoustic Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Shell Interaction, Frequency Domain1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Solid Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Thermoelasticity Interaction, Frequency Domain1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain Perturbation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Thermoelasticity Interaction, Transient1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustics, Boundary Mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Eigenfrequency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain, Modal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mode Analysis in 1D axisymmetry and 2D |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustics, SLNS Approximation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Convected Wave Equation, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Nonlinear Pressure Acoustics, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Time Dependent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Compressible Potential Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Wall (Slip Velocity) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mass Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mean Flow Velocity Potential |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slip Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antiperiodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Continuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Euler |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Asymptotic Far-Field Radiation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance (Ingard-Myers) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Moving Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Acoustic Fields |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure (Isentropic) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Rigid Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Soft Boundary (Isentropic) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Specific Acoustic Impedance (Isentropic) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antiperiodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Continuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cyclic Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Floquet Periodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Navier-Stokes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure (Adiabatic) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Mechanical |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Stress |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| No Slip |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| No Stress |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slip (ideal) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antiperiodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Continuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cyclic Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Floquet Periodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Adiabatic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Heat Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Isothermal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Temperature |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Potential Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Incident Velocity Potential |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Mass Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Plane Wave Radiation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Soft Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Velocity Potential |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Vortex Sheet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antiperiodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Continuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Port |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Annular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Circular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antisymmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Load |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Compute Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fixed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fracture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Free |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Flux/Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Interior Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Low-Reflecting Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Material Discontinuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Material Discontinuity (Isotropic) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Roller |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Poroelastic Waves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Added Mass |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Load |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fixed Constraint |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Free |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Free, Sound Soft |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impervious Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impervious Mass Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Impervious Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Rigid Connector |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Roller |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spring Foundation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thin Elastic Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Added Mass |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antisymmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Load |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fixed Constraint |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Free |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Low-Reflecting Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Port |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Roller |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spring Foundation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thin Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Diffusion Equation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Inward Energy Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mapped Room Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Room Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Ray Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Material Discontinuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Detector |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Receiver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Pressure Field |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Accumulator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Diffuse Scattering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Disappear |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Freeze |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Reflection |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Isotropic Scattering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mixed Diffuse and Specular Reflection |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pass Through |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Pressure Level Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Specular Reflection |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Stick |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Boundary Impedance Models (Impedance), Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Absorption Coefficient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Characteristic Specific Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cylindrical wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Plane wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spherical wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Physiological |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Human ear drum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Human ear without pinna |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Human ear, full |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Human skin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Outward human ear radiation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Porous Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Select the porous layer properties from the list of Poroacoustic models |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  RCL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Options for all permutations of an RCL circuit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Waveguide end impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flanged pipe, circular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flanged pipe, rectangular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Unflanged pipe, circular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Unflanged pipe, circular (low ka limit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Boundary Impedance Models (Impedance), Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General local reacting (rational approximation) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Serial coupling RCL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User defined (resistive) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Boundary Impedance Models (Impedance), Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General local reacting (rational approximation) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Serial coupling RCL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User defined (resistive) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics (FEM Based) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cylindrical Wave Radiation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Exterior Field Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Perforated Plate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Sound Hard Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Matched Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Perfectly Matched Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Plane Wave Radiation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Soft Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spherical Wave Radiation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Boundary Layer Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Transfer Matrix Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Interior Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Membrane |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Perforated Plate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Porous Mass Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thin Plate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Interior Lumped Speaker Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Connection to Circuit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Lumped Port |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Connection to Circuit, Two-port, or Waveguide |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Lumped Speaker Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Connection to Circuit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antiperiodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Continuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cyclic Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Floquet Periodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Port |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Annular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Circular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Numeric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Rectangular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined (nondispersive) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Boundary Elements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Excluded Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Soft Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pressure Acoustics, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Exterior Field Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Flux/Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Interior Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Material Discontinuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Soft Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Material Discontinuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Receiver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Diffuse Scattering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mixed Diffuse and Specular Reflections |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Specular Reflection |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Temperature Variation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure (Adiabatic) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slip Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Surface Tension |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Interior Lumped Speaker Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Connection to Circuit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Lumped Port |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Connection to Circuit, Two-port, or Waveguide |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Lumped Speaker Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Connection to Circuit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Mechanical Conditions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Boundary Stress |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| No Slip |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| No Stress |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slip (ideal) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Periodic Condition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Antiperiodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Continuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cyclic Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Floquet Periodicity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Port |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Circular (0,0)-mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Numeric (0,0)-mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Plane Wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slit (0,0)-mode |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermal Conditions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Adiabatic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Heat Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Isothermal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Temperature Variation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Convected Wave Equation, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Flux/Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Interior Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Hard Wall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Nonlinear Pressure Acoustics, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Compute Maximum and Minimum Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Flux/Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Interior Flux |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Interior Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Material Discontinuity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Normal Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Hard Boundary (Wall) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Sound Soft Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Symmetry |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mass Flow Circular Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mass Flow Edge Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mass Flow Line Source on Axis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mass Flow Point Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Edges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fluid Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Initial Values |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pipe Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Volume Force |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Points |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Closed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  End Impedance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flanged Pipe, Circular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flanged Pipe, Rectangular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Infinite Pipe |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Infinite Pipe (Low Mach Number Limit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Unflanged Pipe, Circular |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Unflanged Pipe, Circular (Low ka Limit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Dipole Point Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Power |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Line Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Gaussian Pulse |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Intensity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Power |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Monopole Point Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Gaussian Pulse |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Intensity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Power |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Quadrupole Point Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Power (lateral) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Power (longitudinal) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Added Mass |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Edge and Point Load |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fixed Constraint |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spring Foundation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Liquids and Gases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Piezoelectric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermodynamics: Predefined System |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Dry air |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Moist air |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Water-steam |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic BEM-FEM Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Pressure Acoustics, Boundary Elements to Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Impedance (subfeature) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Membrane |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Perforated Plate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Porous Mass Layer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thin Plate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Streaming Boundary Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain to a Fluid Flow Interface |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Frequency Domain to a Fluid Flow Interface |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Porous Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Pressure Acoustics (FEM/BEM) to Poroelastic Waves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Boundary Layer Impedance (subfeature) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics (FEM/BEM) to Layered Shell1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics (FEM/BEM) to Membrane (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics (FEM/BEM) to Multibody Dynamics1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics (FEM/BEM) to Shell (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics (FEM/BEM) to Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Structure Boundary, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Nonlinear Pressure Acoustics, Time Explicit to Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Time Explicit to Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Thermoviscous Acoustic Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Pressure Acoustics (FEM/BEM) to Thermoviscous Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Aeroacoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Linearized Navier-Stokes to Layered Shell1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Linearized Navier-Stokes to Membrane (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Linearized Navier-Stokes to Multibody Dynamics1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Linearized Navier-Stokes to Shell (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Linearized Navier-Stokes to Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Convected Acoustic–Structure Boundary, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Convected Wave Equation, Time Explicit to Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pair Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Pressure Acoustics to Solid Mechanics (for an assembly geometry) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pair Acoustic–Structure Boundary, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Nonlinear Pressure Acoustics, Time Explicit to Elastic Waves, Time Explicit on a geometric assembly |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Time Explicit to Elastic Waves, Time Explicit on a geometric assembly |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pair Acoustic–Thermoviscous Acoustic Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Pressure Acoustics to Thermoviscous Acoustics (for an assembly geometry) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pair Convected Acoustic–Structure Boundary, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Convected Wave Equation, Time Explicit to Elastic Waves, Time Explicit on a geometric assembly |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Pair Thermoviscous Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Thermoviscous Acoustics to Solid Mechanics (for an assembly geometry) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Porous–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Material to Layered Shell1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Material to Membrane (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Material to Multibody Dynamics1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Material to Shell (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Material to Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Layered Shell1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Membrane (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Multibody Dynamics1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Shell (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Thermal Perturbation Boundary1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Thermoviscous Acoustics to Heat Transfer in Solids1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Thermoelasticity Boundary1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Thermoviscous Acoustics to Thermoelasticity1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustics SLNS–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Layered Shell1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Membrane (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Multibody Dynamics1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Shell (interior and exterior)1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics to Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Pipe Acoustic Connection |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Pressure Acoustics (FEM) to Pipe Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Streaming Domain Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain to a Fluid Flow interface |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Frequency Domain to a Fluid Flow interface |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Aeroacoustic Flow Source Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Fluid Flow (LES or DES) to Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Background Fluid Flow Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fluid Flow to Convected Wave Equation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fluid Flow to Linearized Euler |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fluid Flow to Linearized Navier–Stokes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Background Potential Flow Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Compressible Potential Flow to Linearized Potential Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Lorentz Coupling2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Magnetic Fields to Solid Mechanics2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Magnetic Forces2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Solid Mechanics to Magnetic Fields, No Currents2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Magnetomechanical Forces2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Solid Mechanics to Magnetic Fields2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Nonlinear Magnetostriction2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics to Magnetic Fields2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics to Rotating Machinery, Magnetic2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Piezoelectricity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Solid Mechanics to Electrostatics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Piezoelectricity, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| For Coupling: Elastic Waves, Time Explicit to Electrostatics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Piezomagnetism2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics to Magnetic Fields2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics to Rotating Machinery, Magnetic2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Streaming for Pressure Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic Streaming Boundary Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic Streaming Domain Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Laminar Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Streaming for Thermoviscous Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic Streaming Boundary Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic Streaming Domain Coupling |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Laminar Flow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Piezoelectric Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Piezoelectric Effect |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Electrostatics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Piezoelectric Interaction, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Piezoelectric Effect |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Electrostatics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Poroelastic Waves Interaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Porous Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Waves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Shell Interaction, Frequency Domain1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Shell |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Shell Interaction, Transient1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Shell |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid Interaction, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid Interaction, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Solid–Poroelastic Waves Interaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Porous Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Porous–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroelastic Waves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic–Thermoviscous Acoustic Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Acoustic–Thermoviscous Acoustic Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Pressure Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustic, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Shell Interaction, Frequency Domain1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Shell |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Solid Interaction, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustic–Structure Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Thermoelasticity Interaction, Frequency Domain1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics–Thermoelasticity Boundary1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoelasticity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Frequency Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic–Thermoelasticity Interaction, Transient1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics–Thermoelasticity Boundary1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoelasticity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermoviscous Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 2D Histogram |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Beam Width Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Directivity (plot) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Directivity Index Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Intersection Point 2D (dataset) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Intersection Point 3D (dataset) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Octave Band (plot) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Phase Portrait |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poincaré Map |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Radiation Pattern (plot) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray (dataset) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray (plot) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Bin (dataset) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Evaluation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Trajectories |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Receiver (dataset) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Impulse Response (plot) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Energy Decay (plot) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| AWE Expression |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Exterior Field Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Source with Directivity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 1D, 2D, 2D Axisymmetric, and 3D Formulations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Infinite Acoustic Domain Modeling with Absorbing Layers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Infinite Acoustic Domain Modeling with Perfectly Matched Layers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Infinite Solid Domain Modeling with Perfectly Matched Layers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Initial Values |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Background Acoustic Fields |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Domain Sources |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| First Order Material Parameters |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Compressible Potential Flow Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Euler Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Galerkin Least Squares (GLS) Stabilized FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linearized Navier–Stokes Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Galerkin Least Squares (GLS) Stabilized FEM Formulation | 
|  Linearized Potential Flow Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Initial Stress and Strain Tensors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Anisotropic Poroelastic Material |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Biot Model (viscous losses) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Biot–Allard Model (thermal and viscous losses) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  FEM and dG-FEM Formulations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| dG-FEM Formulation for Elastic Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation for Solid Mechanics and Poroelastic Waves |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Linear Elastic Material Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Isotropic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Orthotorpic and Anisotropic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Isotropic and Anisotropic Loss Factor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Maximum Loss Factor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Rayleigh Damping |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Viscous Damping |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wave Attenuation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Piezoelectric Waves, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Charge Conservation, Piezoelectric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Mechanical Damping |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Piezoelectric Material |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Poroelastic Material (Biot's Theory) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Biot Model (viscous losses) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Biot–Allard Model (thermal and viscous losses) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Solid Mechanics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Added Mass |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Body Load |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fixed Constraint |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Geometric Nonlinearity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Gravity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Piezoelectric Material |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Piezomagnetic Material2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Acceleration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Displacement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Prescribed Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Rotating Frame |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spring Foundation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Domain Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Fitted Domain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Room |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Acoustic Diffusion Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Ray and Domain Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Accumulator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Auxilliary Dependent Variables |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Background Velocity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Calculation of Ray Intensity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Medium Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Phase Calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Detector |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ray Termination |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Ray Release |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Boundary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Data File |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Edge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Grid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Release from Point |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Conical |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Expression |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Hemispherical |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Lambertian |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spherical |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Anisotropic Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Flame Model (n-tau) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Heat Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Monopole and Dipole Domain Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Poroacoustics (for Pressure Acoustics, Time Explicit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Aeroacoustic Flow Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Aeroacoustic Wave Equation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Lighthill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Anisotropic Poroacoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Johnson-Champoux-Allard (JCA) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Johnson-Champoux-Allard-Lafarge (JCAL) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Johnson-Champoux-Allard-Pride-Lafarge (JCAPL) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Background Pressure Field |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Cylindrical Wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Plane Wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Spherical Wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  FEM, BEM, and dG-FEM Formulations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| BEM Formulation for Pressure Acoustics, Boundary Elements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| dG-FEM Formulation for Pressure Acoustics, Time Explicit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation for Pressure Acoustics, Frequency Domain and Pressure Acoustics, Transient |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Stabilized BEM Formulation for Pressure Acoustics, Boundary Elements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Fluid Model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Atmosphere Attenuation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| General Dissipation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ideal Gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Linear Elastic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Ocean Attenuation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermally Conducting |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Thermally Conducting and Viscous |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User–Defined Attenuation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Viscous |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Kirchhoff–Helmholtz (HFBEM) Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Radiating Object |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Scattering Object |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Narrow Region Acoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Circular Duct |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Equilateral Triangular Duct |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Rectangular Duct |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Slit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Very Narrow Circular Duct (Isothermal) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wide Duct Approximation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Poroacoustics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Attenborough |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Biot Parameters (defined in JCA model) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Delaney-Bazley-Miki |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Johnson-Champoux-Allard (JCA) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Johnson-Champoux-Allard-Lafarge (JCAL) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Johnson-Champoux-Allard-Pride-Lafarge (JCAPL) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Limp and Rigid Porous Matrix Approximations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Three-parameter approximation JCAL model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Williams EDFM (equivalent density fluid model) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wilson |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Wood (model for a suspension) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Zwikker-Kosten |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Heat Source |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Background Acoustic Fields |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Plane Wave |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| User Defined |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Nonlinear Thermoviscous Acoustics Contributions (for Time Dependent models) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Galerkin Least Squares (GLS) Stabilized FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustic Model (Sequential Linearized Navier-Stokes or SLNS) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Thermoviscous Acoustics Model (Thermally-Conducting Viscous Fluid Model: Linearized Navier–Stokes, Continuity, and Energy Equations in Quiescent Conditions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| FEM Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Domain Sources |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Convected Wave Equation Model (Linearized Euler Equation with Adiabatic Assumption) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| dG-FEM (Time Explicit) Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  Nonlinear Pressure Acoustics, Time Explicit Model (Westervelt equivalent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| dG-FEM (Time Explicit) Formulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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