computational aeroacoustics

Noise is an integral part of almost every device around us. Vehicles, electronic tools and even the wind can cause such high Sound Pressure Level (SPL) that can disturb our lives. Computational Aeroacoustics (CAA) is a sub-branch of Computational Fluid Dynamics, dealing with flow induced noise sources.

By classifying aeroacoustic noise sources, one can talk about:

  • turbulence induced noise (vortex stretching and interaction), also known as Quadrupole-type noise source
  • aerodynamic flow-obstacle noise (flow structures hitting the bounding wall), in other words Dipole-type noise source
  • fluctuating flow induced noise (e.g. low frequency loudspeaker, exhaust muffler), or Monopole-type noise source

Application of Computational Aeroacoustics

Fluid dynamic simulations can be used (but not limited to):

  • fan and blower noise
  • HVAC noise (e.g. car cabin)
  • Side mirror external noise
  • household device noise (vacuum cleaner, hair dryer)
  • Nozzle noise

Regarding Computational Aeroacoustic simulation services, please contact me for further info!

Acoustic transfer function cfd simulation damping

Acoustic damping in a silencer, simulated with CFD