Bulk dilatation effects on Reynolds stresses in the rapid expansion of a turbulent boundary layer at supersonic speed
Abstract
The evolution of the normal Reynolds stress related to longitudinal velocity fluctuations in an expansion leading to the relaminarization of a boundary layer at supersonic speed is analyzed using a rapid distortion approximation. It is found that, outside the viscous sublayer, bulk dilatation contributes greatly to relaminarization, with the effect of the mean pressure gradient also playing an important role.
- Publication:
-
ONERA
- Pub Date:
- 1981
- Bibcode:
- 1981tsf..symp.....D
- Keywords:
-
- Reynolds Stress;
- Stretching;
- Supersonic Boundary Layers;
- Turbulent Boundary Layer;
- Boundary Layer Equations;
- Laminar Boundary Layer;
- Pressure Gradients;
- Subsonic Flow;
- Fluid Mechanics and Heat Transfer