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Author:
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Category : Military research
Languages : en
Pages : 494
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Book Description
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 494
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Book Description
Author:
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ISBN:
Category : Astronautics
Languages : en
Pages : 368
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Author:
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Category :
Languages : en
Pages : 64
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Author:
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Category : Aeronautics
Languages : en
Pages : 602
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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Category : Science
Languages : en
Pages : 1132
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Category : Government publications
Languages : en
Pages :
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Author: United States. Superintendent of Documents
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Category : Government publications
Languages : en
Pages : 1320
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Author: United States. Superintendent of Documents
Publisher:
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Category : United States
Languages : en
Pages : 1504
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 538
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Author:
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ISBN:
Category :
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.
