Wind tunnel investigations of DU97‐W‐300‐mod equipped with riblets

Abstract

Abstract A well‐known 30% thick wind turbine aerofoil was partially equipped with riblets, and lift and drag data were measured in a large acoustic wind tunnel. Drag was reduced up to 10%, and lift‐to‐drag ratio increased by up to 30%.

Keywords

• riblets
• wind tunnel measurements
• wind turbine aerofoils