Effects of Coriolis force on boundary layer development
Abstract
An experimental study of the effects of Coriolis force on boundary layer development is described. A rotating wind tunnel was designed to have a developing two-dimensional boundary layer subject to system rotation. Time-mean velocity and Reynolds stresses were measured by using a hot-wire anemometer system. The experimental results indicate that the development of boundary layer on the leading side in rotating channel is promoted and suppressed on the trailing side. Two-dimensionality of the boundary layer is preserved on the trailing side, while three-dimensionality corresponding to Taylor-Goertler type longitudinal vortices is generated on the leading side. At higher rotation number, the phenomenon of relaminarization was observed on the trailing side. Reynolds stresses data agreed qualitatively with that predicted from the Reynolds stress equations with rotation.
- Publication:
-
5th Symposium on Turbulent Shear Flows
- Pub Date:
- 1985
- Bibcode:
- 1985stsf.proc...21K
- Keywords:
-
- Coriolis Effect;
- Flow Measurement;
- Rotating Fluids;
- Two Dimensional Boundary Layer;
- Vortices;
- Channel Flow;
- Goertler Instability;
- Hot-Wire Anemometers;
- Reynolds Stress;
- Taylor Instability;
- Three Dimensional Boundary Layer;
- Velocity Distribution;
- Wind Tunnels;
- Fluid Mechanics and Heat Transfer