Intermittency, the entrainment problem
Abstract
The mechanism of entrainment in turbulent wake flows was examined. The development of the wake is dominated by the vortices shed from the recirculation region. These vortices cause the rapid diffusion of the mean flow, and the appearance of waves on the turbulent interface. The persistence of the vortices is the result of a strain energy that is stored in the anisotropy of the turbulence. The effect of the vortices on the mean flow is described by relating the size and strength of the vortices to an additional eddy viscosity.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- August 1973
- Bibcode:
- 1973PhDT.........3B
- Keywords:
-
- Entrainment;
- Intermittency Hypothesis;
- Turbulent Wakes;
- Eddy Viscosity;
- Turbulent Flow;
- Vortices;
- Fluid Mechanics and Heat Transfer