Acoustics Module Study Types
The Acoustics Module is designed for both frequency-domain simulations and transient analysis. The frequency domain simulations include the related eigenvalue and mode analysis problems. The Pressure Acoustics interfaces support most study types with certain exceptions; the Pressure Acoustics, Boundary Element interface only supports frequency domain and the Pressure Acoustics, Time Explicit only the time domain analysis. The Thermoviscous Acoustics and the linearized Aeroacoustic (or convected acoustics) interfaces all support both transient and frequency-domain analysis. The Compressible Potential Flow interface is tailored to model a stationary background flow to be used in a subsequent time-harmonic aeroacoustics simulation. In the Solid Mechanics interface, the static analysis type is also included and can be used to model the stationary state of prestressed systems subject to time-harmonic vibrations.
The analysis types require different solvers and equations. The following study types, briefly discussed in this section, can help you find good candidates for the application:
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Stationary Study
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Frequency Domain Study
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Eigenfrequency Study
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Mode Analysis Study
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Boundary Mode Analysis
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Time Dependent Study
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Frequency Domain, Modal and Time-Dependent, Modal Studies
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Ray Tracing
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Modal Reduced Order Model
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Additional Analysis Capabilities
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Mapping
Studies and Solvers and Harmonic Perturbation, Prestressed Analysis, and Small-Signal Analysis in the COMSOL Multiphysics Reference Manual.
Prestressed Acoustic-Structure Interaction type of problems are also sported using a combination of a stationary solver and a frequency domain perturbation solver.