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AssigneeGamesa Innovation & Technology, S.L.
InventorsGideon Nagy, Ignacio Romero Sanz, Mario Jimenez De Lago
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The invention relates to an aerodynamic profile for the root of a wind turbine blade having a double leading edge, including a leading edge (13), a trailing edge (15) and suction and pressure sides (17, 19) between the leading edge (13) and the trailing edge (15). The profile (5, 5′, 5′) has a relative thickness in the 30%-50% range in at least one section (37) of the root region (31). In addition, the convex portion (21) of the pressure side (19) is configured such that the curvature thereof decreases from a value C0 at the leading edge (13) to a value C1 at a first point P1 and subsequently increases to a value C2 at a second point P2, after which it decreases to a value 0 at the end of the convex portion (21).
A wind turbine blade (1) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and suction and pressure sides (17,19) between the leading edge (13) and the trailing edge (15), the pressure side (19) having a first convex part (21) and a second concave part (23), characterized in that in at least a section (37) of the root region (31) of the blade, the profile (5, 5′, 5″) has a relative thickness in the range of 30%-50% and in that the convex part (21) of the pressure side (19) is shaped so that its curvature decreases from a value C0 in the leading edge (13) to a value C1 in a first point P1, then increases up to a value C2 in a second point P2 and then decreases up to a 0 value at the end of the convex part (21).
Dependencies are inferred from the claim text.