Type of Document	Master's Thesis
Author	Navarra, Kelly R.
Author's Email Address	navarra@terc.wpafb.af.mil
URN	etd-61597-17256
Title	Development of the Pressure-Sensitive-Paint Technique for Advanced Turbomachinery Applications.
Degree	Master of Science
Department	Mechanical Engineering
Advisory Committee	Advisor Name Title Dr. W. F. O'Brien Committee Chair C. A. Dancey none D. C. Rabe none J. R. Gord none
Keywords	Pressure-sensitive paint turbomachinery optical pressure measurement techniques luminescence quenching.
Date of Defense	1997-04-24
Availability	unrestricted
Abstract A new pressure-measurement technique which employs the tools of molecular spectroscopy has recently received considerable attention in the fluid mechanics 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 thesis presents the extension of the technique to advanced turbomachinery applications. New pressure- and temperature-sensitive paints (TSPs) have been developed for application to a state-of-the-art transonic compressor where pressures up to 2 atm and surface temperatures up to 140 degrees C are expected for the first-stage rotor. PSP and TSP data has been acquired from the suction surface of the first-stage rotor of a transonic compressor operating at its peak-efficiency condition. The shock structure is clearly visible in the pressure image, and visual comparison to the corresponding computational fluid dynamics (CFD) prediction shows qualitative agreement to the PSP data.
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