Stereo PIV measurements in an enclosed rotor–stator system with pre-swirled cooling air

Stereo PIV measurements in an enclosed rotor–stator system with pre-swirled cooling air In order to validate computational fluid dynamics (CFD) calculations, accurate velocity measurements were performed in a so called pre-swirl system. The objective was to determine the three-dimensional velocity field in the enclosed rotor–stator gap by using an adapted stereo particle image velocimetry (stereo PIV) setup. Particular attention was invested in the design of the optical access, thus, offering interesting possibilities to investigate various geometrical configurations of the pre-swirl system. The measurements impressively showed the spreading of the jet inside the wheelspace and the unsteady aspect of the flow, confirming that stereo PIV can successfully be applied in an enclosed rotor–stator system. Experiments in Fluids Springer Journals

Stereo PIV measurements in an enclosed rotor–stator system with pre-swirled cooling air

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