“Vortex Dynamics“ of a Vortex Ring Introduced into a Laminar Boundary Layer
In the present work, the motion of a single vortex ring introduced in a laminar boundary layer was observed by means of flow visualization. The turbulent flow evolves from the vortex ring depends on the initial configuration of the vortex ring in a laminar boundary layer. The initial evolution process is strongly dependent on the direction of circulation of the vortex ring in the layer. Furthermore, the turbulent region evolves from the primary vortex was investigated using pseudo-synchronized hot-wire measurements. Breakdown of the vortex ring in a laminar boundary layer leads to the high fluctuation velocity fields within the turbulent bloblike structure.
KeywordsVortex Ring Boundary Layer Transition Vortex Dynamics
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