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Technical Notes: Modern Experimental Techniques in Turbine Engine Testing by J. Lepicovsky; R.J. Bruckner; T.J. Bencic; E.P. Braunscheidel is a Engineering article available to read on EtoBox.

What is Technical Notes: Modern Experimental Techniques in Turbine Engine Testing about?

The paper describes application of two modem 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 surface field pressure data rather than discrete point values only. The paper summarizes NASA experience with these techniques and suggests improvements to ease the application of these techniques for future turbomachinery research and code verifications. ## OB [kW.m" 2 ] bulk heat flow rate, Reynolds number, coolant side, ## ReH-3 [1] Reynolds number, hot-gas side, ÄTs-HC [K] static temperature difference (hot-gas, coolant side).

Who reads Technical Notes: Modern Experimental Techniques in Turbine Engine Testing?

Author

J. Lepicovsky; R.J. Bruckner; T.J. Bencic; E.P. Braunscheidel

Publisher

Walter de Gruyter GmbH

Published

1999

Language

EN

Field

Engineering (Physical Sciences)