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 percent of the corrected design speed for the compressor near-stall condition. A comparison of experimental results with CFD calculations is discussed.
The Application of Pressure- and Temperature-Sensitive Paints to an Advanced Compressor
Contributed by the International Gas Turbine Institute and presented at the 45th International Gas Turbine and Aeroengine Congress and Exhibition, Munich, Germany, May 8–11, 2000. Manuscript received by the International Gas Turbine Institute February 2000. Paper No. 2000-GT-614. Review Chair: D. Ballal.
Navarra , K. R., Rabe, D. C., Fonov , S. D., Goss, L. P., and Hah, C. (February 1, 2000). "The Application of Pressure- and Temperature-Sensitive Paints to an Advanced Compressor ." ASME. J. Turbomach. October 2001; 123(4): 823–829. https://doi.org/10.1115/1.1400116
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