Abstract: The invention relates to a rotor-blade extension body for use with a rotor blade of a rotor of a wind turbine. The rotor-blade extension body is elongate and is realized, for example, as a steel tube segment. There is a lift-generating element mounted on the circumference of the rotor-blade extension body.

Abstract: A rotor blade (5) of a wind turbine, which has a profile (1-4) having an upper side (suction side) (7) and an underside (pressure side) (8). The profile (1-4) includes a camber line (21, 25) and a chord (18) between a leading edge (10) and a trailing edge (11) of the profile (1-4). The profile (1-4) has a relative profile thickness of more than 45%. At least one vortex generator (50, 50?, 50?, 50??) is disposed, in the region of the profile (1-4), on the suction side (7) of the rotor blade (5). The profile (1-4) is provided with a blunt trailing edge. And, The thickness of the trailing edge is between 15% and 70% of the chord length.

Abstract: The invention relates to a rotor-blade extension body for use with a rotor blade of a rotor of a wind turbine. The rotor-blade extension body is elongate and is realized, for example, as a steel tube segment. There is a lift-generating element mounted on the circumference of the rotor-blade extension body.

Abstract: A rotor blade (5) of a wind turbine, which has a profile (1-4) having an upper side (suction side) (7) and an underside (pressure side) (8). The profile (1-4) includes a camber line (21, 25) and a chord (18) between a leading edge (10) and a trailing edge (11) of the profile (1-4). The profile (1-4) has a relative profile thickness of more than 45%. At least one vortex generator (50, 50?, 50?, 50??) is disposed, in the region of the profile (1-4), on the suction side (7) of the rotor blade (5). The profile (1-4) is provided with a blunt trailing edge. And, The thickness of the trailing edge is between 15% and 70% of the chord length.

Abstract: The profile (1-4) of a rotor blade (5) of a wind power plant is characterized in that the main camber line runs beneath the chord at least in sections in the direction of the pressure side (8). The profile is further characterized in that the profile (1-4) has a relative profile thickness of greater than 45% with a position of maximum thickness of less than 50%, wherein a lift coefficient (ca) of greater than 0.9, particularly greater than 1.4 is achieved in turbulent flow.

Abstract: The profile (1-4) of a rotor blade (5) of a wind power plant is characterized in that the main camber line runs beneath the chord at least in sections in the direction of the pressure side (8). The profile is further characterized in that the profile (1-4) has a relative profile thickness of greater than 45 with a position of maximum thickness of less than 50%, wherein a lift coefficient (ca) of greater than 0.9, particularly greater than 1.4 is achieved in turbulent flow.