NOISE ATTENUATOR FOR A WIND TURBINE BLADE AND A METHOD FOR REDUCING WIND TURBINE NOISE

摘要

A noise attenuator for a wind turbine blade includes a first attenuator portion having a plurality of first attenuator elements, each first attenuator element being separated from an adjacent first attenuator element by an interface; and a second attenuator portion having a plurality of second attenuator elements, each second attenuator element being separated from an adjacent second attenuator element by an interface. The first and second attenuator portions are configured to be juxtapositioned in an overlapping relation relative to each other to collectively form the noise attenuator. Adjacent attenuator elements on the noise attenuator may effectively intersect each other at a substantially sharp corner. A method of reducing wind turbine noise includes juxtapositioning the first and second attenuator portions relative to each other so that the attenuator elements effectively intersect each other at a substantially sharp corner.