To model and optimize complex physical procedures, the Gesellschaft für Akustikforschung Dresden mbH successfully applies the numerical calculation software COMSOL Multiphysics® of the company COMSOL Multiphysics GmbH. The software is based on the finite element method and can be used in numerous specific areas. Furthermore, the combination of specific analysis modules allows the interaction of various physical mechanisms.

Problems of the following specific areas can be modeled and solved:

• electrostatics, magnetostatics, electromagnetics
• fields, forces, torques
• structural mechanics
• mechanical stress, strain
• stress analysis of bars, plates, 3D-solids
• eigenfrequencies
• vibrational and resonance behaviour of structures
  
• acoustics
  
• distribution of sound pressure and particle velocity in media and rooms
• efficiency of mufflers
• sound propagation in car interiors
• modeling of loudspeakers and microphones
• fluid mechanics
• behaviour of objects in fluid flows
  
• fluid dynamics
  
• lift / negative lift of profiles
• development of turbulences at objects in flow
  
• aeroacoustics
• sound emission at objects in airflow
• underwater acoustics
  
• thermodynamics
• distribution of temperature, temperature gradient
  
• heat conduction
• heat transfer (convection) 
• heat radiation
  

Top: distribution of mechanical stress of a component (source: COMSOL Multiphysics®)
Center: distribution of eigenfrequencies of a room (source: COMSOL Multiphysics®)
Bottom: development of turbulences at a cylinder in flow (source: COMSOL Multiphysics®)