Effects of inlet turbulence and rotor/stator interactions on the aerodynamics and heat transfer of a large-scale rotating turbine model. Part 4: Aerodynamic data tabulation

Technical Report · Sat Oct 31 23:00:00 EST 1987

OSTI ID:6747795

Dring, R P; Joslyn, H D; Blair, M F

A combined experimental and analytical program was conducted to examine the effects of inlet turbulence and airfoil heat transfer. The experimental portion of the study was conducted in a large-scale (approx. 5X engine), ambient temperature, rotating turbine model configured in both single-stage and stage-and-a-half arrangements. Heat transfer measurements were obtained using low-conductivity air foils 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, first stator-rotor axial spacing, Reynolds number and relative circumferential position of the first and second stators. Aerodynamic measurements obtained 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. Results include airfoil heat transfer predictions produced using existing 2-D boundary layer computation schemes and an examination of solutions of the unsteady boundary layer equations.

• Research Organization: United Technologies Research Center, East Hartford, CT (USA)
• OSTI ID: 6747795
• Report Number(s): N-88-23956; NASA-CR-179469; NAS-1.26:179469; UTRC-R-86-956480-4
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
421000 -- Engineering-- Combustion Systems
AERODYNAMICS
AIRFOILS
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
GAS TURBINES
HEAT TRANSFER
MACHINERY
MECHANICS
MOTION
ROTATION
ROTORS
STATORS
TURBINES
TURBOMACHINERY
TURBULENCE
UNSTEADY FLOW