All Rights Reserved © 2019 WATCFD

Aeroacoustics

Aeroacoustic Resonance in a Deep Cavity with Grazing Flow
  1. The resonant oscillation occurring in a cavity with grazing flow can produce sound with peaks at discrete frequencies.

  2. The oscillation can be categorized as fluid-dynamic and fluid-resonant.

  3. The fluid-dynamic oscillation is sustained by a feed-back loop consistent with the vortex in the shear layer and pressure waves from the downstream edge of the cavity.

  4. The fluid-resonant oscillation is due to the Helmholtz resonance phenomenon.

  5. A deep cavity can have both types of the oscillations.

Velocity Field in One Resonance Cycle

Present Results

This site was designed with the
.com
website builder. Create your website today.
Start Now