Vortex generator for wind turbine blade, wind turbine blade and wind power generating apparatus, and method for manufacturing wind turbine blade
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsYasuaki Shiraishi, Wakako Ariki, Yoshiyuki Ueda
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Abstract
A vortex generator for wind turbine blade is a vortex generator for wind turbine blade, the vortex generator being made of a resin, including: a platform; and at least one fin disposed projecting from an upper surface of the platform. The vortex generator includes a cavity that opens to a bottom surface of the platform and extends to an inside of the fin.
Claims14
A vortex generator for a wind turbine blade, the vortex generator being made of a resin, comprising:
- a platform;
- and
- at least one fin projecting from an upper surface of the platform,
- wherein the vortex generator includes a void cavity that opens to a bottom surface of the platform and extends to an inside of the fin, and
- a maximum value of a height of the void cavity from the bottom surface of the platform is not less than HF/3, where HF is a distance between the bottom surface and a top portion of the fin in a height direction of the fin.
A method for manufacturing a wind turbine blade including a blade body and a vortex generator made of a resin, the vortex generator comprising:
- a platform;
- at least one fin projecting from an upper surface of the platform;
- a void cavity that opens to a bottom surface of the platform and extends to an inside of the fin;
- and
- a hole disposed in the fin, and communicating with the void cavity as well as opening to a surface of the fin,
- wherein the method comprises a step of adhering the platform of the vortex generator to a surface of the blade body;
- and
- a step of, in a state where the platform is adhered to the surface of the blade body and the void cavity is exposed to the surface of the blade, sucking internal air of the void cavity via the hole.
A vortex generator for a wind turbine blade, the vortex generator being made of a resin, comprising:
- a platform;
- and
- at least one fin projecting from an upper surface of the platform,
- wherein the vortex generator includes a cavity that opens to a bottom surface of the platform and extends to an inside of the fin,
- wherein, in at least 50% of an extension range of the cavity in a height direction of the fin, a wall thickness of the fin at a position of a leading edge of the fin and in a chordwise direction of the fin is at least 0.5 and at most 2.0 times an average of a maximum thickness and a minimum thickness of the platform.
Dependencies are inferred from the claim text.