The laminar-turbulent transition in a flow under the effect of acoustic vibrations
Abstract
Flow visualization techniques have been used to study the laminar-turbulent transition produced by acoustic vibrations in jet flows. It is found that the transition region is formed by two cone-shaped flows whose apexes meet at a point located at the end of the laminar region of the jet. Slight changes in the frequency of acoustic vibrations produce a change in the position of the cone-shaped flows with respect to the sound source. The results suggest the presence of acoustically heterogeneous regions in the laminar flow.
- Publication:
-
Inzhenerno Fizicheskii Zhurnal
- Pub Date:
- October 1983
- Bibcode:
- 1983InFiZ..45..560S
- Keywords:
-
- Boundary Layer Transition;
- Free Jets;
- Sound Waves;
- Vibration Effects;
- Conical Flow;
- Flow Visualization;
- Laminar Flow;
- Turbulent Flow;
- Fluid Mechanics and Heat Transfer