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This content will become publicly available on December 16, 2014

Title: Unconventional Rotor Power Response to Yaw Error Variations

Continued inquiry into rotor and blade aerodynamics remains crucial for achieving accurate, reliable prediction of wind turbine power performance under yawed conditions. To exploit key advantages conferred by controlled inflow conditions, we used EU-JOULE DATA Project and UAE Phase VI experimental data to characterize rotor power production under yawed conditions. Anomalies in rotor power variation with yaw error were observed, and the underlying fluid dynamic interactions were isolated. Unlike currently recognized influences caused by angled inflow and skewed wake, which may be considered potential flow interactions, these anomalies were linked to pronounced viscous and unsteady effects.
 [1] ;  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). National Wind Technology Center
  2. Energy Research Center of the Netherlands (ERC), Petten (Netherlands)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 1742-6588
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 555; Journal Issue: 1; Related Information: Journal of Physics: Conference Series; Journal ID: ISSN 1742-6588
IOP Publishing
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
Country of Publication:
United States
17 WIND ENERGY; wind turbine rotors; blade aerodynamics; turbine power performance; NREL