초록 ▼

A vortex generator device (70) for mounting on a wind turbine blade (10) is disclosed. The device comprises: a base (71) having, when mounted on an exterior of the wind turbine blade (10), an inner side (72) for attaching on a surface, such as the exterior of the wind turbine blade (10), and an oute

A vortex generator device (70) for mounting on a wind turbine blade (10) is disclosed. The device comprises: a base (71) having, when mounted on an exterior of the wind turbine blade (10), an inner side (72) for attaching on a surface, such as the exterior of the wind turbine blade (10), and an outer side (73) facing away from the exterior of the wind turbine blade (10). The device is provided with a vane vortex generator pair comprising a first vane (79) and a second vane (80) protruding from the outer side (73) of the base (71). The inner side (72) of the base (71) is provided with a recess (74) or undercut for obtaining an adhesive (81).

대표청구항 ▼

1. A vortex generator device (70) for mounting on a wind turbine blade (10) comprising: a base (71) having, when mounted on an exterior of the wind turbine blade (10), an inner side (72) for attaching on a surface, such as the exterior of the wind turbine blade (10), andan outer side (73) facing awa

1. A vortex generator device (70) for mounting on a wind turbine blade (10) comprising: a base (71) having, when mounted on an exterior of the wind turbine blade (10), an inner side (72) for attaching on a surface, such as the exterior of the wind turbine blade (10), andan outer side (73) facing away from the exterior of the wind turbine blade (10),the device being provided with a vane vortex generator pair comprising a first vane (79) and a second vane (80) protruding from the outer side (73) of the base (71), characterised in thatthe inner side (72) of the base (71) is provided with a recess (74) or undercut, the recess or undercut having a uniform depth;wherein an adhesive film or strip is arranged within the recess of the inner side; andwherein the adhesive film or strip comprises a layer of compressible material. 2. A vortex generator according to claim 1, wherein the adhesive film or strip, such as is a double adhesive tape, is arranged within the recess of the inner side. 3. A vortex generator device according to claim 1, wherein the adhesive film or strip comprises a layer of compressible material, such as is a layer of foam cells. 4. A vortex generator device according to claim 1, wherein the adhesive film or strip is covered by a peel-off layer. 5. A vortex generator device according to claim 1, wherein the adhesive is acrylic based. 6. A vortex generator device according to claim 1, wherein the vortex-generating means protrude from the outer side of the base, the vortex-generating means advantageously being vane vortex generators. 7. A vortex generator device according to claim 1, wherein the base comprises a first perimeter and wherein the recess comprises a second perimeter, the second perimeter having a spacing to the first perimeter. 8. A vortex generator device according to claim 7, wherein the first perimeter is substantially parallel to the second perimeter. 9. A vortex generator device according to claim 1, wherein the base further comprises: a first end and a second end, anda first side and a second side. 10. A vortex generator device according to claim 9, wherein the first side is substantially parallel to the second side, and/or the first end is substantially parallel to the second end. 11. A vortex generator device according to claim 1, wherein a single vane vortex generator pair having a first vane and a second vane protrudes from the outer side of the base. 12. A kit of parts comprising vortex generators devices according to claim 1 and being of different sizes, e.g. two or three sizes. 13. A blade (10) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft, said rotor comprising a hub (8), from which the blade (10) extends substantially in a radial direction when mounted to the hub (8), the blade having a longitudinal direction (r) with a tip end (16) and a root end (14) and a transverse direction, the blade further comprising: a profiled contour (40, 42, 50) including a pressure side and a suction side as well as a leading edge (18) and a trailing edge (20) with a chord having a chord length extending therebetween, the profiled contour, when being impacted by an incident airflow, generating a lift, wherein the profiled contour is divided into:a root region (30) having a substantially circular or elliptical profile closest to the hub, an airfoil region (34) having a lift-generating profile furthest away from the hub, and optionallya transition region (32) between the root region (30) and the airfoil region (34), the transition region (32) having a profile gradually changing in the radial direction from the circular or elliptical profile of the root region to the lift-generating profile of the airfoil region, and whereinthe blade is provided with a vortex generator according to claim 1, and wherein the inner side of the base of the vortex generator is attached to a surface of the wind turbine blade. 14. A wind turbine comprising a number of blades, preferably two or three, according to claim 13. 15. A method of retrofitting a vortex generator device according to claim 1 to a surface of a wind turbine blade.