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The effects of inlet turbulence and rotor/stator interactions on the aerodynamics and heat transfer of a large-scale rotating turbine model, volume 1A combined experimental and analytical program was conducted to examine the effects of inlet turbulence on airfoil heat transfer. Heat transfer measurements were obtained using low conductivity airfoils with miniature thermocouples welded to a thin, electrically heated surface skin. Heat transfer data were acquired for various combinations of low or high inlet turbulence intensity, flow coefficient (incidence), first-stator/rotor axial spacing, Reynolds number, and relative circumferential position of the first and second stators. Aerodynamic measurements include distributions of the mean and fluctuating velocities at the turbine inlet and, for each airfoil row, midspan airfoil surface pressures and circumferential distributions of the downstream steady state pressures and fluctuating velocities. Analytical results include airfoil heat transfer predictions and a examination of solutions of the unstead boundary layer equipment.
Document ID
19890004385
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Dring, R. P. (United Technologies Research Center East Hartford, CT, United States)
Blair, M. F. (United Technologies Research Center East Hartford, CT, United States)
Joslyn, H. D. (United Technologies Research Center East Hartford, CT, United States)
Power, G. D. (United Technologies Research Center East Hartford, CT, United States)
Verdon, J. M. (United Technologies Research Center East Hartford, CT, United States)
Date Acquired
September 5, 2013
Publication Date
July 1, 1987
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
E-3536
NAS 1.26:4079
NASA-CR-4079
UTRC-R86-956480-VOL-1
Accession Number
89N13756
Funding Number(s)
PROJECT: RTOP 533-04-11
CONTRACT_GRANT: NAS3-23717
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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