A rotor blade of an aerodynamic rotor of a wind turbine, comprising: - at least a first and a second wing fence , 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 or fence section , 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 respectively fence section , - 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 , 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 or fence section , 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 respectively fence section , - 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 or fence section , 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 respectively fence section , - 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 . <EOS>