Devices that Alter the Tip Vortex of a Rotor PDF Download

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Devices that Alter the Tip Vortex of a Rotor

Devices that Alter the Tip Vortex of a Rotor PDF Author:
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Languages : en
Pages : 230

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Book Description
Small devices were attached near the tip of a hovering rotor blade in order to alter the structure and trajectory of the trailing vortex. Stereo particle image velocimetry (PIV) images were used to quantify the wake behind the rotor blade during the first revolution. A procedure for analyzing the 3D-velocity field is presented that includes a method for accounting for vortex wander. The results show that a vortex generator can alter the trajectory of the trailing vortex and that a major change in the size and intensity of the trailing vortex can be achieved by introducing a high level of turbulence into the core of the vortex.