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About the nature of a secondary phenomenon inside a cavity shear flow

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This study addresses the case of centrifugal instabilities in an open cavity flow driven by a shear-layer. In particular, we consider a secondary phenomenon which develops, for reproducible supercritical values of the control parameters, on a primary pattern formed of Taylor Görtler vortices in the spanwise direction of the inner-flow. Several interpretations of this phenomenon are addressed and discussed.

Author(s):

Christelle Douay    
LIMSI CNRS
France

Luc Pastur    
LIMSI CNRS
France

François Lusseyran    
LIMSI CNRS
France