The physics of vortex flows
Abstract
It is noted that in three-dimensional flows, separation leads to the formation of vortex structures, a result of the rolling up of the 'sheet' of viscous fluid which, initially contained in a thin boundary layer, surges from the obstacle surface into the nondissipative smooth outer flow. Using the critical points theory it is possible to correctly interpret the surface flow patterns that reflect the outer flow and give a rational description of the vortex system. This approach is applied to separated flows generated by typical bodies, whose fields are studied by visualizations as well as by the use of laser velocimetry and multihole sensors.
- Publication:
-
ONERA
- Pub Date:
- 1990
- Bibcode:
- 1990agar.symp.....D
- Keywords:
-
- Boundary Layer Separation;
- Three Dimensional Flow;
- Vortices;
- Boundary Layer Flow;
- Turbulent Flow;
- Viscous Flow;
- Vortex Breakdown;
- Fluid Mechanics and Heat Transfer