At the Department of Fluid System Dynamics, within the Collaborative Research Centre 1029 funded by the German Research Foundation (DFG), the influence of the rotor-stator interaction by four adaptive blade systems is studied. Using the adjustable stator vane, moveable stator vane, Gurney flaps and piezo actuators the flow losses are decreased by reducing the incidence. Therefore experimental investigations are carried out in a cascade, integrated in a water channel by means of the High-Speed PIV and time-resolved pressure measurement. The presented investigations show an enlargement of the operating range by using Gurney flaps in a rotating system and the adjustable front flap.
Adaptive Blade Systems for Increased Operating Range of a Turbomachine
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Hammer, S, Peter, J, Thamsen, PU, Meyer, R, Phan, DT, & Liebich, R. "Adaptive Blade Systems for Increased Operating Range of a Turbomachine." Proceedings of the ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. Volume 1A: Symposia, Part 2. Seoul, South Korea. July 26–31, 2015. V01AT33A019. ASME. https://doi.org/10.1115/AJKFluids2015-33762
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