A Comparison of Lifting-Line and CFD Methods with Flight Test Data from a Research Puma Helicopter PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 354
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Book Description
Four lifting-line methods were compared with flight test data from a research Puma helicopter and the accuracy assessed over a wide range of flight speeds. Hybrid CFD methods were also examined for two high-speed conditions. A parallel analytical effort was performed with the lifting-line methods to assess the effects of modeling assumptions and this provided insight into the adequacy of these methods for load predictions.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 354
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Book Description
Four lifting-line methods were compared with flight test data from a research Puma helicopter and the accuracy assessed over a wide range of flight speeds. Hybrid CFD methods were also examined for two high-speed conditions. A parallel analytical effort was performed with the lifting-line methods to assess the effects of modeling assumptions and this provided insight into the adequacy of these methods for load predictions.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723496462
Category :
Languages : en
Pages : 352
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Book Description
Four lifting-line methods were compared with flight test data from a research Puma helicopter and the accuracy assessed over a wide range of flight speeds. Hybrid Computational Fluid Dynamics (CFD) methods were also examined for two high-speed conditions. A parallel analytical effort was performed with the lifting-line methods to assess the effects of modeling assumptions and this provided insight into the adequacy of these methods for load predictions. Bousman, William G. and Young, Colin and Toulmay, Francois and Gilbert, Neil E. and Strawn, Roger C. and Miller, Judith V. and Maier, Thomas H. and Costes, Michel and Beaumier, Philippe Ames Research Center NASA-TM-110421, NAS 1.15: 110421, A-962753, USAATCOM TR-96-A-008 RTOP 505-59-87...
Author:
Publisher: DIANE Publishing
ISBN: 1428916822
Category :
Languages : en
Pages : 32
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
The lack of progress in understanding the physics of rotorcraft loads and vibration over the last 30 years is addressed in this paper. As befits this extraordinarily difficult problem, the reasons for the lack of progress are complicated and difficult to ascertain. It is proposed here that the difficulty lies within at least three areas: 1) a loss of perspective as to what are the key factors in rotor loads and vibration, 2) the overlooking of serious unsolved problems in the field, and 3) cultural barriers that impede progress. Some criteria are suggested for future research to provide a more concentrated focus on the problem.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
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Author: Louis J. Williams
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 232
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 570
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 244
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
