CPC F03D 1/0633 (2013.01) [B29C 64/10 (2017.08); F03D 1/0675 (2013.01); B29L 2031/085 (2013.01); B33Y 80/00 (2014.12); F05B 2230/10 (2013.01); F05B 2230/30 (2013.01); F05B 2230/50 (2013.01); F05B 2230/80 (2013.01); F05B 2230/90 (2013.01); F05B 2240/302 (2013.01); F05B 2250/611 (2013.01)] | 17 Claims |
1. A method of manufacturing a device (19) for modifying an aerodynamic profile of a wind turbine blade (5), the wind turbine blade (5) having a base aerodynamic profile, wherein the method comprises:
manufacturing a body (24) of the device (19) having at least one outer surface (21) and at least one contact surface (20), the at least one contact surface (20) is shaped to substantially follow the contour of said base aerodynamic profile, when attached, wherein the body (24) forms a complex profile extending in a chordwise direction and further in a longitudinal direction, the complex profile is configured to modify said base aerodynamic profile of the wind turbine blade (5), when attached, and wherein the complex profile has concave and convex curvature in the chordwise and longitudinal directions; and
applying (33′) at least one layer of fibre material or a coating over at least a portion of said at least one outer surface (21) of the body (24) to form the device (19), the device (19) being configured to be attached to the wind turbine blade (5),
wherein said body (24) is manufactured (31) by three-dimensional printing and/or by three-dimensional machining of a base element (31a) of said device (19).
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