This paper describes preparatory work towards three-dimensional flowfield measurements downstream of the rotor in an industrial, multistage, axial compressor, using a pneumatic pressure probe. The probe is of the steady-state four-hole cobra probe type. The design manufacture and calibration of the probe is described. CFD calculations have been undertaken in order to assess the feasibility of using such a probe in the high-speed compressor environment where space is limited. This includes effects of mounting the probe in close proximity to the downstream stator blades and whether it is necessary to adjust the calibration data to compensate for these effects.
Considerations for Using 3-D Pneumatic Probes in High-Speed Axial Compressors
Contributed by the International Gas Turbine Institute and presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Amsterdam, The Netherlands, June 3–6, 2002. Manuscript received by the IGTI, October 15, 2001. Paper No. 2002-GT-30045. Review Chair: E. Benvenuti.
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Coldrick , S., Ivey, P., and Wells, R. (January 23, 2003). "Considerations for Using 3-D Pneumatic Probes in High-Speed Axial Compressors ." ASME. J. Turbomach. January 2003; 125(1): 149–154. https://doi.org/10.1115/1.1515334
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