Aerodynamic study and control of instabilities of the initial zone of the annular jet by acoustic excitations or modification of the central obstacle.
Résumé
The annular jet is an example of complex shear flow situations. Two axisymmetric shear layers, originating at the jet exit, one at the nozzle lip and the other at the centre body, eventually meet downstream or interact with each other. This study also proposes to apply P.O.D on P.I.V velocity fields. This article discusses especially about a control of an annular jet by acoustic excitations or modification of the central obstacle.
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