| 摘要 |
The present disclosure relates to a wind turbine blade, in particular a wind turbine blade having devices or structures for reducing noise generated by the wind turbine blade during use and related method. The wind turbine blade comprises at least a first longitudinal section having a cross section perpendicularly to a longitudinal direction, the cross section having a plurality of flow modulating devices including a first primary flow modulating device and a secondary flow modulating device for modulating noise spectra, wherein the first primary flow modulating device and the first secondary flow modulating device are spaced perpendicularly to the longitudinal direction. Also disclosed is a method of retrofitting a wind turbine blade. |
