Evaluation of Helicopter Noise Due to B Blade-vortex Interaction for Five Tip Configurations PDF Download
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Author:
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ISBN:
Category :
Languages : en
Pages : 84
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 84
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Author: Danny R. Hoad
Publisher:
ISBN:
Category : Acoustical engineering
Languages : en
Pages : 84
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Author:
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Category : Science
Languages : en
Pages : 56
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Author: United States. National Aeronautics and Space Administration
Publisher:
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Category : Aeronautics
Languages : en
Pages : 256
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
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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 : Aeronautics
Languages : en
Pages : 96
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Author: Danny R. Hoad
Publisher:
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Category : Rotors (Helicopters)
Languages : en
Pages : 112
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Author: Danny R. Hoad
Publisher:
ISBN:
Category :
Languages : en
Pages : 112
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The results of a model rotor acoustic test in the Langley 4- by 7-Meter Tunnel are used to evaluate a free-wake analytical technique. An acoustic triangulation technique is used to locate the position in the rotor disk where the blade-vortex interaction noise originates. These locations, along with results of the rotor free-wake analysis, are used to define the geometry of the blade-vortex interaction noise phenomena as well as to determine if the free-wake analysis is a capable diagnostic tool. Data from tests of two teetering rotor systems are used in these analyses. Keywords; Helicopter rotor disks; Free wake; Blade-vortex interactions; Acoustic properties.
Author: Wolfgang E. Nagel
Publisher: Springer Science & Business Media
ISBN: 3319021656
Category : Computers
Languages : en
Pages : 689
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Book Description
This book presents the state-of-the-art in simulation on supercomputers. Leading researchers present results achieved on systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2013. The reports cover all fields of computational science and engineering ranging from CFD via computational physics and chemistry to computer science with a special emphasis on industrially relevant applications. Presenting results of one of Europe’s leading systems this volume covers a wide variety of applications that deliver a high level of sustained performance. The book covers the main methods in high performance computing. Its outstanding results in achieving highest performance for production codes are of particular interest for both the scientist and the engineer. The book comes with a wealth of coloured illustrations and tables of results.
Author: Earth Resources Laboratory (U.S.)
Publisher:
ISBN:
Category : Remote sensing
Languages : en
Pages : 214
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