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modern experimental techniques in turbine engine testingThe paper describes application of two modern experimental techniques, thin-film thermocouples and pressure sensitive paint, to measurement in turbine engine components. A growing trend of using computational codes in turbomachinery design and development requires experimental techniques to refocus from overall performance testing to acquisition of detailed data on flow and heat transfer physics to validate these codes for design applications. The discussed experimental techniques satisfy this shift in focus. Both techniques are nonintrusive in practical terms. The thin-film thermocouple technique improves accuracy of surface temperature and heat transfer measurements. The pressure sensitive paint technique supplies areal surface pressure data rather than discrete point values only. The paper summarizes our experience with these techniques and suggests improvements to ease the application of these techniques for future turbomachinery research and code verifications.
Document ID
19970009487
Document Type
Conference Paper
Authors
Lepicovsky, J.
(NYMA, Inc. Brook Park, OH United States)
Bruckner, R. J.
(NASA Lewis Research Center Cleveland, OH United States)
Bencic, T. J.
(NASA Lewis Research Center Cleveland, OH United States)
Braunscheidel, E. P.
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1996
Subject Category
Aircraft Propulsion and Power
Report/Patent Number
NAS 1.15:107383
NASA-TM-107383
E-10572
Meeting Information
International Congress on Fluid Dynamics and Propulsion(Cairo)
Funding Number(s)
PROJECT: RTOP 505-62-10
CONTRACT_GRANT: NAS3-27186
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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