Vortex breakdown simulationA 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.
Document ID
19850059263
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nakamura, Y. (Nagoya University Japan)
Leonard, A. (Nagoya Univ. Aichi, Japan)
Spalart, P. R. (NASA Ames Research Center Moffett Field, CA, United States)