Aerodynamic testing of a rotating wind turbine blade
Aerodynamic, load, flow-visualization, and inflow measurements were taken on a downwind horizontal-axis wind turbine (HAWT). A video camera mounted on the rotor recorded video images of tufts attached to the low-pressure side of the blade. Strain gages, mounted every 10% of the blade's span, provided load and pressure measurements. Pressure taps at 32 chordwise positions recorded pressure distributions. Wind inflow was measured via a vertical-plane array of anemometers located 10 m upwind. The objectives of the test were to address whether airfoil pressure distributions measured on a rotating blade differed from those measured in the wind tunnel, if radial flow near or in the boundary layer of the airfoil affected pressure distributions, if dynamic stall could result in increased dynamic loads, and if the location of the separation boundary measured on the rotating blade agreed with that measured in two-dimensional flow in the wind tunnel. 6 refs., 9 figs., 1 tab.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 5195307
- Report Number(s):
- SERI/TP-257-3490; CONF-890610--7; ON: DE90000312
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
170602* -- Wind Energy Engineering-- Turbine Design & Operation
AERODYNAMICS
ANEMOMETERS
DYNAMIC LOADS
FLOW VISUALIZATION
FLUID MECHANICS
HORIZONTAL AXIS
HORIZONTAL AXIS TURBINES
MACHINERY
MEASURING INSTRUMENTS
MECHANICS
PRESSURE
PRESSURE MEASUREMENT
STRAIN GAGES
TURBINE BLADES
TURBINES
TURBOMACHINERY
WIND TURBINE
WIND TURBINES