Title :
Pressure-sensitive-paint measurements in a large-scale commercial-engine test stand
Author :
Jordan, Jeffrey D. ; Watkins, A. Neal ; Davis, John C P N ; Weaver, William L. ; Dale, Gary A. ; Navarra, Kelly R. ; Urban, Justin R. ; Devoid, Wayne E. ; Strange, Richard A.
Author_Institution :
Innovative Sci. Solutions Inc., Dayton, OH, USA
fDate :
6/21/1905 12:00:00 AM
Abstract :
This paper presents the application of pressure-sensitive paint (PSP) measurement technology to a large-scale commercial turbine-engine test stand. In this work, the test article is the engine-inlet bell mouth. A sol-gel-based PSP is applied to the inlet and illuminated using the blue (460-nm) output of eleven LED arrays. PSP data are acquired using a scientific-grade CCD camera. The application of PSP measurements in the engine-test-stand environment requires test instrumentation to be fixed within a housing located upstream of the test article. Challenges associated with performing PSP in this hostile environment are discussed, with focus on the strategies implemented to recover surface-pressure distributions on the engine-inlet bell mouth
Keywords :
aerospace engines; aerospace testing; fluorescence; image registration; optical sensors; pressure sensors; radiation quenching; wind tunnels; 460 nm; CCD camera; Stern-Volmer quenching; aerodynamic test surfaces; engine-inlet bell mouth; hostile environment; image registration; image resection; large-scale commercial-engine test stand; luminescence probe; pressure-sensitive-paint measurements; sol-gel-based paint; surface-pressure distributions; turbine-engine test stand; wind tunnels; Aerodynamics; Charge coupled devices; Charge-coupled image sensors; Force measurement; Large-scale systems; Luminescence; Mouth; Paints; Temperature distribution; Testing;
Conference_Titel :
Instrumentation in Aerospace Simulation Facilities, 1999. ICIASF 99. 18th International Congress on
Conference_Location :
Toulouse
Print_ISBN :
0-7803-5715-9
DOI :
10.1109/ICIASF.1999.827161
