Experimental investigations of controlled transition of a laminar separation bubble in an axisymmetric diffuser

The instability of a pressure-induced laminar separation bubble is examined experimentally on an axisymmetric diffuser for a Reynolds number range 7,800 ≤ ≤ 11,400 for an inlet pipe diameter D 1 (50 mm) and as mean input flow velocity 4.2 m/s ≤ u m ≤ 6.1 m/s. A characterization of the base flow...

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Veröffentlicht in:	Experiments in fluids 2008-01, Vol.44 (1), p.89-103
Hauptverfasser:	Hoefener, Lars, Nitsche, Wolfgang
Format:	Artikel
Sprache:	eng
Schlagworte:	Axisymmetric Bubbles Diffusers Disturbances Engineering Engineering Fluid Dynamics Engineering Thermodynamics Exact sciences and technology Flows in ducts, channels, nozzles, and conduits Fluid dynamics Fluid flow Fluid- and Aerodynamics Fundamental areas of phenomenology (including applications) Heat and Mass Transfer Instability Instrumentation for fluid dynamics Physics Research Article Separation Turbulence control Turbulent flows, convection, and heat transfer
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