The Spanwise Confined One-Stream Mixing Layer
the regular - “wide” - mixing layer (B/L = 0.25, uo = 8 m/s)
same geometric conditions - periodically excited (uo = 11 m/s), and
the “narrow” layer: natural periodicity (B/L = 0.016, uo = 4 m/s)
it provides a model situation for constrained shear flows as found in nature, e.g. in civil engineering applications and in meteorology.
it is of general interest in view of the possibility of controlling turbulent flows via stationary boundary conditions
it may provide a case of study for a situation with absolute instability
it may also provide a case for low dimensional chaos.
KeywordsShear Layer Horseshoe Vortex Absolute Instability Downstream Position Stationary Boundary Condition
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