Abstract: A rotor blade of a wind turbineis provided, the rotor blade including a lift modifying device having at least one fluid jet module and at least one compressed fluid sources, wherein the at least one fluid jet module includes multiple fluid jets, which are fluidically connected to the at least one compressed fluid source, whereby the at least one fluid jet module is mounted as an add-on onto an outer surface of the suction side or the pressure side of the rotor blade. Also provided is a method for installing this rotor blade, whereby a rotor blade is provided and the at least one fluid jet module is mounted as an add-on onto the outer surface of the suction side or the pressure side of the rotor blade.

Abstract: A method of providing an edge seal along a longitudinal edge of an add-on part mounted on the outer surface of a rotor blade is provided. The method includes determining a height at the longitudinal edge of the add-on part, choosing a width for the edge seal to be applied on the rotor blade surface, wherein the width of the edge seal is chosen to exceed the height at the longitudinal edge of the add-on part by a factor of at least twenty; and forming the edge seal by applying a sealant material to the rotor blade surface at least in a volume defined by the height at the longitudinal edge of the add-on part and the chosen edge seal width.

Abstract: A rotor blade for a wind turbine is provided. The rotor blade includes a pressure side, a suction side, a leading edge section with a leading edge, and a trailing edge section with a trailing edge. An airflow flows along the surface of the rotor blade from the leading edge section to the trailing edge section and builds up a boundary layer in close proximity to the surface of the rotor blade. The rotor blade includes a noise reduction device for reducing noise which is generated by interaction of the airflow and the rotor blade. The noise reduction device is located within the boundary layer of the rotor blade. The noise reduction device includes a cover and connection device for connecting the cover to the surface of the rotor blade. The cover spans at least over a part of the surface of the rotor blade.

Abstract: A method of providing an edge seal along a longitudinal edge of an add-on part mounted on the outer surface of a rotor blade is provided. The method includes determining a height at the longitudinal edge of the add-on part, choosing a width for the edge seal to be applied on the rotor blade surface, wherein the width of the edge seal is chosen to exceed the height at the longitudinal edge of the add-on part by a factor of at least twenty; and forming the edge seal by applying a sealant material to the rotor blade surface at least in a volume defined by the height at the longitudinal edge of the add-on part and the chosen edge seal width.

Abstract: A rotor blade for a wind turbine is provided. The rotor blade includes an aerodynamic device for influencing the airflow flowing from the leading-edge section of the rotor blade to the trailing edge section of the rotor blade. The aerodynamic device is mounted at a surface of the rotor blade and includes a pneumatic or hydraulic actuator, such as a hose a cavity, of which the volume depends on the pressure of a fluid being present inside the pneumatic or hydraulic actuator. The rotor blade further includes a control unit for controlling the pressure of the fluid in the hose or the cavity of the aerodynamic device.

Abstract: An arrangement to reduce vortex induced vibrations in a building structure is provided. A building structure is disclosed, including an outer surface, whereby a vortex generator is connected to the outer surface of the building structure. The vortex generator is prepared and arranged in a way to generate vortices in an airstream passing by the outer surface.

Abstract: A rotor blade for a wind turbine is provided. The rotor blade includes an aerodynamic device for influencing the airflow flowing from the leading-edge section of the rotor blade to the trailing edge section of the rotor blade. The aerodynamic device is mounted at a surface of the rotor blade and includes a pneumatic or hydraulic actuator, such as a hose or a cavity, of which the volume depends on the pressure of a fluid being present inside the pneumatic or hydraulic actuator. The rotor blade further includes a control unit for controlling the pressure of the fluid in the hose or the cavity of the aerodynamic device.

Abstract: A rotor blade for a wind turbine with an aerodynamic device, and an aerodynamic device is provided. The rotor blade includes a main body defining a pressure side and a suction side of the rotor blade, and includes a main body trailing edge section. The rotor blade includes an aerodynamic device with an attachment section for attaching the aerodynamic device to the main body trailing edge section, an aerodynamic section for influencing the aerodynamic properties of the rotor blade, and a buckling section for controlling the orientation and/or the shape of the aerodynamic section with regard to the main body. The aerodynamic device is configured such that it deforms elastically for a force component acting in flapwise direction on the buckling section, and deforms abruptly if a force component of about the size of the stability limit of the buckling section acts in flapwise direction on the buckling section.

Abstract: A rotor blade for a wind turbine is provided. The rotor blade includes a pressure side, a suction side, a leading edge section with a leading edge, and a trailing edge section with a trailing edge. An airflow flows along the surface of the rotor blade from the leading edge section to the trailing edge section and builds up a boundary layer in close proximity to the surface of the rotor blade. The rotor blade includes a noise reduction device for reducing noise which is generated by interaction of the airflow and the rotor blade. The noise reduction device is located within the boundary layer of the rotor blade. The noise reduction device includes a cover and connection device for connecting the cover to the surface of the rotor blade. The cover spans at least over a part of the surface of the rotor blade.

Abstract: A rotor blade for a wind turbine with an aerodynamic device, and an aerodynamic device is provided. The rotor blade includes a main body defining a pressure side and a suction side of the rotor blade, and includes a main body trailing edge section. The rotor blade includes an aerodynamic device with an attachment section for attaching the aerodynamic device to the main body trailing edge section, an aerodynamic section for influencing the aerodynamic properties of the rotor blade, and a buckling section for controlling the orientation and/or the shape of the aerodynamic section with regard to the main body. The aerodynamic device is configured such that it deforms elastically for a force component acting in flapwise direction on the buckling section, and deforms abruptly if a force component of about the size of the stability limit of the buckling section acts in flapwise direction on the buckling section.