Jet column modes in both a plane jet and a passively modified plane jet subject to acoustic excitation

Use is made of acoustic excitation to enhance the coherent vortical structures that form in both a plane jet and a passively modified plane jet. The Strouhal number for the preferred mode based on the nozzle height of the jet is found to be unaffected by the passive modification. The existence of th...

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Veröffentlicht in:	Experiments in fluids 2003-09, Vol.35 (3), p.278-287
Hauptverfasser:	OLSEN, J. F, RAJAGOPALAN, S, ANTONIA, R. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic excitation Coherence Columns (structural) Exact sciences and technology Excitation Fluid dynamics Fundamental areas of phenomenology (including applications) Instrumentation for fluid dynamics Jets Nozzles Physics Planes Strouhal number Turbulence control Turbulent flows, convection, and heat transfer
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