Experiments on shock/vortex interactionsThe interaction between a shock wave and a supersonic streamwise vortex is a fundamental fluid-dynamics problem with numerous practical applications. This paper describes an experimental study of this phenomenon. In particular, supersonic streamwise vortices of varying strength and Mach number were generated and measured using five-hole and total-temperature probes. In addition, the interactions between a vortex and either an oblique or a normal shock wave were visualized using schlieren and planar-laser-scattering techniques. The mean-flow measurements show both similarities and differences between the supersonic streamwise vortex and its incompressible counterpart, while the flow-visualization results show that the shock/vortex interaction is always unsteady and that, under certain conditions, the vortex can burst. The conditions necessary for supersonic vortex breakdown are presented.
Document ID
19920043138
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cattafesta, L. N., III (NASA Ames Research Center Moffett Field, CA, United States)
Settles, G. S. (Pennsylvania State University University Park, United States)