An innovative pressure-measurement technique that employs the tools of molecular spectroscopy has been widely investigated by the aerospace community. Measurements are made via oxygen-sensitive molecules attached to the surface of interest as a coating, or paint. The pressure-sensitive-paint (PSP) technique is now commonly used in stationary wind-tunnel tests; this paper presents the use of this technique in advanced turbomachinery applications. New pressure- and temperature-sensitive paints (P/TSPs) have been developed for application to a state-of-the-art transonic compressor where pressures up to 1.4 atm and surface temperatures to 90°C are expected for the suction surface of the first-stage rotor. PSP and TSP data images have been acquired from the suction surface of the first-stage rotor at 85% of the corrected design speed for the compressor near-stall condition. A comparison to over-the-rotor pressure transducer measurements will be presented.
- International Gas Turbine Institute
The Application of Pressure- and Temperature-Sensitive Paints to an Advanced Compressor
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Navarra, KR, Rabe, DC, & Goss, LP. "The Application of Pressure- and Temperature-Sensitive Paints to an Advanced Compressor." Proceedings of the ASME Turbo Expo 2000: Power for Land, Sea, and Air. Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education. Munich, Germany. May 8–11, 2000. V004T04A031. ASME. https://doi.org/10.1115/2000-GT-0614
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