A thick aerodynamic profile with regions of negative lift slope and possible implications on profiles for wind turbine blades

• Published in: Wind energy (Chichester, England) Vol. 24; no. 2; pp. 162 - 173
• Main Authors: Peter Schaffarczyk, Alois, Arakawa, Chuichi
• Format: Journal Article
• Language: English
• Published: Bognor Regis John Wiley & Sons, Inc 01.02.2021
• Subjects: Aerodynamics; Airfoil profiles; CFD; Computational fluid dynamics; Computer applications; Fluid dynamics; Fluid flow; High pressure; Hydrodynamics; Negative lift; negative lift slope; pressurized wind tunnel; Reynolds number; thick wind turbine air foil; Turbine blades; Turbines; Wind power; Wind tunnels; Wind turbines; Zero lift

In the high pressure wind tunnel (HochDruckkanal Goettingen [HDG]) of Deutsch–Niederländische Windkanäle—German–Dutch Wind Tunnels (DNW) a 47% thick airfoil‐like symmetrical profile was investigated at a high (3 to 12 million) Reynolds number. As an unusual feature, a negative lift slope dcL/dα <...