Entrainment region phenomena for a large plane shear layer
Abstract
The subatmospheric test section of the present free shear layer facility allows the entrainment air to be introduced with a negligible disturbance level. The very low frequency oscillations, which are prominently observed in the entrainment stream and which are present throughout the shear layer, are attributed to an inherent instability in the transition from a boundary layer to a free shear layer state. The basic features of the disturbance field are documented herein.
- Publication:
-
5th Symposium on Turbulent Shear Flows
- Pub Date:
- 1985
- Bibcode:
- 1985stsf.proc....3A
- Keywords:
-
- Boundary Layer Stability;
- Boundary Layer Transition;
- Entrainment;
- Flow Visualization;
- Free Flow;
- Shear Layers;
- Boundary Layer Separation;
- Inviscid Flow;
- Oscillating Flow;
- Fluid Mechanics and Heat Transfer