KURSER
Acoustics modeling
The Acoustics Module is a complete modeling environment for linear wave-like phenomena in fluids and structures. A set of suitable boundary conditions, for example PMLs (perfectly matched layers), makes it easy to handle infinite surroundings. Also, far-field integral processing increases the classes of problems you can solve. During the full-day Acoustics Modeling Course, you will choose between exercises including the following:
- Study the near- and far-field acoustic pressure distribution of a down-firing sub woofer. This model introduces you to many important aspects of acoustics modeling in COMSOL Multiphysics
- Simulate inductive and resistive sound damping in a model of an automotive muffler
- Learn how to model bidirectional acoustic-structure interaction
- Try the Ultraweak method in an ultrasound scattering model
- In a model of a piezoacoustic transducer, see how an applied AC voltage creates sound
- Set up a realistic multiphysics loudspeaker model including the driver mechanism and the interaction between the cone and the air
The course covers the following topics, and more:
- Fundamental equations in fluids and solids
- The relation between the time domain and the frequency domain
- Meshing techniques and rules of thumb for resolving acoustic waves
- The Ultraweak method for effectively solving problems with small wavelengths
- Rundown of boundary conditions, including those for open and fluid-structure boundaries
- PMLs: how they work, when and how to use them
- Model the near-field, evaluate the pressure in the far-field and everywhere else
- Visualization and data extraction
Instructor
COMSOL AB
Linus Andersson received his M.Sc. degree in Engineering Physics at the Royal Institute of Technology in Stockholm, Sweden. He joined COMSOL in 2003, after completing his diploma thesis at CERN, Switzerland. Linus is the assistant manager of global technical customer support and an applications engineer specializing in electromagnetics and acoustics.