Studies of acoustic effects on a flow boundary layer in air
Abstract
Effects of sound fields on the flow boundary layer on a flat plate subjected to a parallel flow are studied. The boundary layer is influenced by controlling the stagnation point flow at the front edge of the plate. Depending on the Reynolds number and sound frequency, excitation or suppression of turbulent is observed. Measurements were taken at wind velocities between 10 and 30 m/sec and sound frequencies between 0.2 and 3.0 kHz.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1986
- Bibcode:
- 1986STIN...8621792M
- Keywords:
-
- Acoustic Frequencies;
- Boundary Layer Flow;
- Perturbation;
- Stagnation Flow;
- Turbulent Boundary Layer;
- Flow Velocity;
- Hot-Wire Anemometers;
- Reynolds Number;
- Wind Tunnel Tests;
- Wind Velocity;
- Fluid Mechanics and Heat Transfer