Status of the special-purpose airfoil families
This work is directed at developing thin and thick airfoil families, for rotors with diameters of 10 to 30 m, that enhance energy output at low to medium wind speeds and provide more consistent operating characteristics with lower fatigue loads at high wind speeds. Performance is enhanced through the use of laminar flow, while more consistent rotor operating characteristics at high wind speeds are achieved by tailoring the airfoil such that the maximum lift coefficient C/sub 1,max/ is largely independent of roughness effects. Using the Eppler airfoil design code, two thin and one thick airfoil family were designed; each family has a root, outboard, and tip airfoil. Two-dimensional wind-tunnel tests were conducted to verify the predicted performance characteristics for both a thin and thick outboard airfoil from these families. Atmospheric tests on full-scale wind turbines will complete the verification process. 3 refs., 7 figs., 3 tabs.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA); Airfoils, Inc., Hampton, VA (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 5748776
- Report Number(s):
- SERI/TP-217-3264; CONF-871062-9; ON: DE88001124
- Resource Relation:
- Conference: Windpower '87, San Francisco, CA, USA, 5 Oct 1987; Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AIRFOILS
DESIGN
WIND TURBINES
EXPERIMENTAL DATA
MATHEMATICAL MODELS
PERFORMANCE TESTING
THEORETICAL DATA
WIND TUNNELS
DATA
INFORMATION
MACHINERY
NUMERICAL DATA
TESTING
TUNNELS
TURBINES
TURBOMACHINERY
UNDERGROUND FACILITIES
170602* - Wind Energy Engineering- Turbine Design & Operation