High-repetition-rate PIV investigations on a generic rocket model in sub- and supersonic flows |
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Authors: | Martin Bitter Sven Scharnowski Rainer Hain Christian J. Kähler |
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Affiliation: | 1.Institute of Fluid Mechanics and Aerodynamics,Universit?t der Bundeswehr München,Neubiberg,Germany |
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Abstract: | High-repetition-rate PIV measurements were performed in the trisonic wind tunnel facility at the Bundeswehr University Munich in order to investigate the boundary layer parameters on a generic rocket model and the recirculation area in the wake of the model at Mach numbers up to Mach = 2.6. The data are required for the validation of unsteady flow simulations. Because of the limited run time of the blow-down wind tunnel, a high-repetition-rate PIV system was applied to obtain the flow statistics with high accuracy. The results demonstrate this method’s potential to resolve small-scale flow phenomena over a wide field of view in a large Mach number range but also show its limitations for the investigations of wall-bounded flows. |
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