Wind turbine blade with aerodynamic device attached thereto

1. A wind turbine blade comprising an aerodynamic device mounted to an outer surface of the blade, the aerodynamic device comprising a baseplate having an inner surface defining a mounting region and a sealing region at least partially surrounding the mounting region, wherein:

the mounting region is bonded to the outer surface of the blade by an adhesive;

a seal is provided between the sealing region of the baseplate and the outer surface of the blade, the seal at least partially surrounding the mounting region; and

a barrier is provided between the seal and the adhesive, the barrier being arranged substantially to prevent contact between the seal and the adhesive,

wherein the sealing region comprises a skirt at least partially surrounding the mounting region, the skirt being arranged to cover the seal.

2. The wind turbine blade of claim 1 , wherein the barrier is integral with the baseplate.

3. The wind turbine blade of claim 1 , wherein the barrier forms a second seal around the adhesive.

4. The wind turbine blade of claim 1 , wherein the barrier includes one or more features protruding from the inner surface of the baseplate.

5. The wind turbine blade of claim 1 , wherein the barrier comprises a ridge.

6. The wind turbine blade of claim 1 , wherein the barrier is configured to define a tortuous path between the seal and the adhesive.

7. The wind turbine blade of claim 1 , wherein the seal comprises sealant or a gasket.

8. The wind turbine blade of claim 1 , wherein the skirt is inclined relative to the mounting region and a peripheral edge of the skirt is substantially in contact with the outer surface of the blade.

9. The wind turbine blade of claim 8 , wherein the peripheral edge of the skirt forms a seal against the outer surface of the blade.

10. The wind turbine blade of claim 1 , wherein the aerodynamic device is mounted to a trailing edge of the blade.

11. The wind turbine blade of claim 10 , wherein the aerodynamic device includes a plurality of serrations extending from the baseplate.

12. The wind turbine blade of claim 1 , wherein the baseplate is bonded to a pressure surface of the blade and the aerodynamic device further comprises one or more anti-peel features extending from the baseplate and overlapping a suction surface of the blade.

13. The wind turbine blade of claim 12 , wherein the anti-peel features comprise one or more fingers.

14. A wind turbine comprising the wind turbine blade of claim 1 .

15. A wind turbine blade comprising an aerodynamic device mounted to an outer surface of the blade, the aerodynamic device comprising a baseplate having an inner surface defining a mounting region and a sealing region at least partially surrounding the mounting region, wherein:

the mounting region is bonded to the outer surface of the blade by an adhesive;

a seal is provided between the sealing region of the baseplate and the outer surface of the blade, the seal at least partially surrounding the mounting region; and

a barrier is provided between the seal and the adhesive, the barrier being arranged substantially to prevent contact between the seal and the adhesive,

wherein the barrier comprises a plurality of ridges that are spaced apart such that channels are defined between adjacent ridges.

16. The wind turbine blade of claim 15 , wherein the seal comprises sealant and at least some of the sealant is located in at least one of the channels.

17. The wind turbine blade of claim 15 , wherein a gap is defined between a tip of each of the plurality of ridges and the outer surface of the blade.

18. A wind turbine blade comprising an aerodynamic device mounted to an outer surface of the blade, the aerodynamic device comprising a baseplate having an inner surface defining a mounting region and a sealing region at least partially surrounding the mounting region, wherein:

the mounting region is bonded to the outer surface of the blade by an adhesive;

a seal is provided between the sealing region of the baseplate and the outer surface of the blade, the seal at least partially surrounding the mounting region; and

a barrier is provided between the seal and the adhesive, the barrier being arranged substantially to prevent contact between the seal and the adhesive,

wherein the barrier comprises a lip that forms a further seal against the outer surface of the blade.

19. The wind turbine blade of claim 18 , wherein the lip is flexible and is angled towards an outer perimeter of the baseplate.