A rotor blade of an aerodynamic rotor of a wind turbine, comprising: - at least a first and a second wing fence (810, 820), wherein - the first wing fence is arranged at the rotor blade in radial direction, in relation to an axis of rotation of the rotor, in a range of 25% to 40% of the radius of the rotor and - the second wing fence is arranged at the rotor blade in radial direction, in relation to the axis of rotation of the rotor, in a range of 45% to 60% of the radius of the rotor, wherein - has a blade nose pointing approximately in the direction of movement of the rotor blade and - a rear edge facing away from the blade nose and - that each wing fence (810, 820) or fence section (811, 812, 821, 822), respectively, increases in terms of its height (h) starting from the blade nose all the way to the rear edge, characterized in that the wing fence (810, 820) respectively fence section (811, 812, 821, 822), - starts at a height (h) of 0 to 5 mm close to the blade nose to then continuously increase up to a height (h) of more than 15 mm, in particular more than 20 mm, all the way to the rear edge, and that the - the first wing fence has a greater mean height (h) than the second wing fence. - at least a first and a second wing fence (810, 820), wherein - the first wing fence is arranged at the rotor blade in radial direction, in relation to an axis of rotation of the rotor, in a range of 25% to 40% of the radius of the rotor and - the second wing fence is arranged at the rotor blade in radial direction, in relation to the axis of rotation of the rotor, in a range of 45% to 60% of the radius of the rotor, wherein - has a blade nose pointing approximately in the direction of movement of the rotor blade and - a rear edge facing away from the blade nose and - that each wing fence (810, 820) or fence section (811, 812, 821, 822), respectively, increases in terms of its height (h) starting from the blade nose all the way to the rear edge, characterized in that the wing fence (810, 820) respectively fence section (811, 812, 821, 822), - starts at a height (h) of 0 to 5 mm close to the blade nose to then continuously increase up to a height (h) of more than 15 mm, in particular more than 20 mm, all the way to the rear edge, and that the - the first wing fence has a greater mean height (h) than the second wing fence. - the first wing fence is arranged at the rotor blade in radial direction, in relation to an axis of rotation of the rotor, in a range of 25% to 40% of the radius of the rotor and - the second wing fence is arranged at the rotor blade in radial direction, in relation to the axis of rotation of the rotor, in a range of 45% to 60% of the radius of the rotor, wherein - has a blade nose pointing approximately in the direction of movement of the rotor blade and - a rear edge facing away from the blade nose and - that each wing fence (810, 820) or fence section (811, 812, 821, 822), respectively, increases in terms of its height (h) starting from the blade nose all the way to the rear edge, characterized in that the wing fence (810, 820) respectively fence section (811, 812, 821, 822), - starts at a height (h) of 0 to 5 mm close to the blade nose to then continuously increase up to a height (h) of more than 15 mm, in particular more than 20 mm, all the way to the rear edge, and that the - the first wing fence has a greater mean height (h) than the second wing fence.