An Experimental Investigation of the Chopping of Helicopter Main Rotor Tip Vortices by the Tail Rotor PDF Download
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Author:
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Category :
Languages : en
Pages : 224
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Author: Raghuveera Padakannaya
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Category : Eddies
Languages : en
Pages : 44
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Category :
Languages : en
Pages : 40
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Author: United States. National Aeronautics and Space Administration
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Category : Aeronautics
Languages : en
Pages : 256
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Category : Astronautics
Languages : en
Pages : 316
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Category : Military research
Languages : en
Pages : 424
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Author:
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Category : Aeronautics
Languages : en
Pages : 704
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Author:
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Category :
Languages : en
Pages : 224
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Category : Mechanics, Applied
Languages : en
Pages : 934
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Author: Robert H. Schlinker
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Category : Helicopters
Languages : en
Pages : 138
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Category :
Languages : en
Pages : 230
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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.
