Absolute/convective secondary instabilities and the role of confinement in free shear layers
classification
⚛️ physics.flu-dyn
keywords
layersconfinementfreeshearvortexabsoluteconvectivecounterflow
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Mixing layers can grow in time or space by vortex pairings that succeed each other in a nearly self-similar way. We use a point vortex model to study how confinement eventually limits this growth process, leading us to propose a wavelength selection mechanism for free shear layers with counterflow.
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