Open AccessStudy of Pitch Oscillation and Roughness on Airfoils Used for Horizontal Axis Wind Turbines
Author(s) -
G. M. Gregorek,
Michael J. Hoffmann,
R.R. Ramsay,
J.M. Janiszewska
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/205204
Subject(s) - airfoil , aerodynamics , wind power , marine engineering , wind tunnel , environmental science , aerospace engineering , renewable energy , computational fluid dynamics , meteorology , engineering , geography , electrical engineering
Under subcontract XF-1-11009-3 the Ohio State University Aeronautical and Astronautical Research Laboratory (OSU/AARL) with the National Renewable Energy Laboratory (NREL) developed an extensive database of empirical aerodynamic data. These data will assist in the development of analytical models and in the design of new airfoils for wind turbines. To accomplish the main objective, airfoil models were designed, built and wind tunnel tested with and without model leading edge grit roughness (LEGR). LEGR simulates surface irregularities due to the accumulation of insect debris, ice, and/or the aging process. This report is a summary of project project activity for Phase III, which encompasses the time period from September 17, 1 993 to September 6, 1 994