Forced and unforced subharmonic resonance in boundary-layer transition
Abstract
Results of an experimental study to demonstrate that the subharmonic transition mechanisms in a boundary layer can be carefully controlled are described. The wave resonance leading to transition with naturally occurring subharmonics is described with some new results. It is shown that similar resonance conditions are observed when the subharmonic is introduced directly into the vibrating ribbon. The forcing of the subharmonic disturbance steadies the resonance conditions and produces a more controlled observation.
- Publication:
-
AIAA, Aerospace Sciences Meeting
- Pub Date:
- January 1984
- Bibcode:
- 1984aiaa.meetQU...S
- Keywords:
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- Boundary Layer Stability;
- Boundary Layer Transition;
- Forced Vibration;
- Turbulent Boundary Layer;
- Flow Stability;
- Flow Visualization;
- Resonant Vibration;
- Reynolds Number;
- Velocity Distribution;
- Vortex Breakdown;
- Wind Tunnel Tests;
- Fluid Mechanics and Heat Transfer