Turbulent Wake in a Stratified Medium (Trubulentnyy Sled v Stratifitsirovannoy Srede),
NAVAL INTELLIGENCE SUPPORT CENTER WASHINGTON D C TRANSLATION DIV
Pagination or Media Count:
The article discusses the problem of determining the shape of a turbulent wake formed behind a self-propelled body in a medium with a density variable in the direction of action of gravity. A schematic picture of the development of the wake behind the moving object is as follows at the outset, the diffusion is the same in all directions, and the wake expands symmetrically with increasing distance from the object, the diffusion becomes strongly anisotropic, it decreases in the vertical direction under the action of gravity, and the wake assumes a flattened shape in the volume occupied by the wake, turbulent mixing within the wake gives rise to a more homogeneous density distribution than in the ambient medium this volume of liquid is no longer in a state of equilibrium and, acted upon by gravity, tends to return to this state the wake collapses, and this is accompanied by its further expansion in the horizontal direction and excitation of internal waves.
- Fluid Mechanics