publication . Report . Book . 1999

Airfoil characteristics for wind turbines

Christian Bak; Fuglsang, P.; Niels N. Sørensen; Helge Aagaard Madsen; Shen, W. Z.; Jens Nørkær Sørensen;
Open Access
  • Published: 01 Jan 1999
  • Country: Denmark
Airfoil characteristics for use in the Blade Element Momentum (BEM) method calculating the forces on Horizontal Axis Wind Turbines (HAWT) are derived by use of systematic methods. The investigation and derivation of the airfoil characteristics are basedon four different methods: 1) Inverse momentum theory, 2) Actuator disc theory, 3) Numerical optimisation and 4) Quasi-3D CFD computations. The two former methods are based on 3D CFD computations and wind tunnel measurements on a 41-m full-scale rotorwith LM 19.1 blades. The derived airfoil characteristics show that the lift coefficient in stall at the tip is low and that it is high at the root compared to 2D airf...
free text keywords: Vindenergi og atmosfæriske processer, Risø-R-1065, Risø-R-1065(EN)
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