New applications of liquid-crystal thermography in rotating turbomachinery heat transfer researchTwo new liquid-crystal thermography techniques developed for use in rotating heat transfer experiments are described. In one experiment steady-state heat transfer data were obtained on the exterior surface of rotating turbine airfoil models. In the second study a transient technique was employed to obtain interior-surface heat transfer data in a rotating turbine blade coolant passage model. Sample data are presented in the form of photographs of the liquid-crystal temperature patterns and as contour maps and distributions of heat transfer on the rotor and coolant passage surfaces.
Document ID
19920033086
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Blair, M. F. (United Technologies Research Center East Hartford, CT, United States)
Wagner, J. H. (United Technologies Research Center East Hartford, CT, United States)
Steuber, G. D. (Pratt and Whitney Group East Hartford, CT, United States)