Vortex breakdown simulation
Abstract
A vortex breakdown was simulated by the vortex filament method, and detailed figures are presented based on the results. Deformations of the vortex filaments showed clear and large swelling at a particular axial station which implied the presence of a recirculation bubble at that station. The tendency for two breakdowns to occur experimentally was confirmed by the simulation, and the jet flow inside the bubble was well simulated. The particle paths spiralled with expansion, and the streamlines took spiral forms at the breakdown with expansion.
- Publication:
-
AIAA, 18th Fluid Dynamics and Plasmadynamics and Lasers Conference
- Pub Date:
- July 1985
- Bibcode:
- 1985fdpd.confS....N
- Keywords:
-
- Computational Fluid Dynamics;
- Flow Geometry;
- Numerical Flow Visualization;
- Three Dimensional Flow;
- Vortex Breakdown;
- Bubbles;
- Filaments;
- Flow Velocity;
- Radial Distribution;
- Radii;
- Fluid Mechanics and Heat Transfer