| 摘要 |
Provided is a wind turbine blade that can improve aerodynamic performance in a blade-tip region and reduce aerodynamic noise. A wind turbine blade includes a blade body having a chord length that decreases from a blade root side to a blade tip side, wherein the blade body includes a blade-tip region in which a dimensionless radial position is within the range of 0.6 to 1.0, inclusive, the dimension less radial position being the ratio of radial position to blade radius (1/2 of a blade diameter), and a blade-body region in which the dimensionless radial position is smaller than 0.6, and wherein a maximum-blade-thickness position (L1) of a blade cross-section in the blade-tip region is closer to a leading edge (9) than a maximum-blade-thickness position (L1) of a blade cross-section in the blade-body region. |
