Acoustics
- Taught by Rubén Picó Vila
- This course is part of the following academic programs:
This course covers the physical interfaces and the specific tools of the Acoustics Module added to the main COMSOL Multiphysics installation.
The Acoustics Module is used to model the acoustic behavior of a variety of products and structures. It is used to study and predict factors such as sound quality and noise reduction performance in devices involving acoustic phenomena. It provides specialized acoustic and vibration tools for applications such as: loudspeakers, mobile devices, microphones, silencers, sensors, probes, ultrasonic flowmeters, auditoriums, etc. Multiphysics capabilities allow coupling with other physical areas and phenomena such as structural mechanics, piezoelectricity and fluid flow. This multiphysics environment is extended by several specific numerical methods, including the finite element method (FEM), the boundary element method (BEM), ray tracing and the discontinuous Galerkin finite element method (dG- FEM).
We will start with an overview of the basic concepts of acoustics, including the different constitutive equations and the different boundary conditions. We will then explore and practice their implementation in modeling using the available physics interfaces. We will also look in depth at multiphysics couplings, including the important case of structure-acoustics interaction.
- Basic concepts in acoustic modeling
- Introduction to acoustic modeling.
- Fundamental theory of acoustics.
- Basic methods and functionalities of acoustic modeling.
- Physics interfaces for acoustics
- The pressure acoustic interfaces.
- The elastic wave interface.
- The ultrasound interface.
- Thermoviscous and aeracoustic interfaces.
- The geometric and pipe acoustics interfaces.
- Structure-acoustic interaction.
Image made using the COMSOL Multiphysics® software and provided by courtesy of COMSOL.
