Correlation of Puma Airloads--Lifting-Line and Wake Calculation

Correlation of Puma Airloads--Lifting-Line and Wake Calculation PDF Author:
Publisher: DIANE Publishing
ISBN: 1428916822
Category :
Languages : en
Pages : 32

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Correlation of Puma Airloads--Lifting-Line and Wake Calculation

Correlation of Puma Airloads--Lifting-Line and Wake Calculation PDF Author:
Publisher: DIANE Publishing
ISBN: 1428916822
Category :
Languages : en
Pages : 32

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Book Description


Correlation of Puma Airloads--Lifting-Line and Wake Calculation

Correlation of Puma Airloads--Lifting-Line and Wake Calculation PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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Correlation of Puma Airloads

Correlation of Puma Airloads PDF Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722132385
Category :
Languages : en
Pages : 32

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Book Description
A cooperative program undertaken by organizations in the United States, England, France, and Australia has assessed the strengths and weaknesses of four lifting-line/wake methods and three CFD methods by comparing their predictions with the data obtained in flight trials of a research Puma. The Puma was tested in two configurations: a mixed bladed rotor with instrumented rectangular tip blades, and a configuration with four identical swept tip blades. The results are examined of the lifting-line predictions. The better lifting-line methods show good agreement with lift at the blade tip for the configuration with four swept tips; the moment is well predicted at 0.92 R, but deteriorates outboard. The predictions for the mixed bladed rotor configuration range from fair to good. The lift prediction is better for the swept tip blade than for the rectangular tip blade, but the reasons for this cannot be determined because of the unmodeled effects of the mixed bladed rotor. Bousman, William G. and Young, Colin and Gilbert, Neil and Toulmay, Francois and Johnson, Wayne and Riley, M. J. Ames Research Center RTOP 992-21-01...

Correlation of Puma Airloads: Evaluation of CFD Prediction Methods

Correlation of Puma Airloads: Evaluation of CFD Prediction Methods PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 26

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A Comparison of Lifting-Line and CFD Methods with Flight Test Data from a Research Puma Helicopter

A Comparison of Lifting-Line and CFD Methods with Flight Test Data from a Research Puma Helicopter PDF 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.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 244

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Aeronautical Engineering

Aeronautical Engineering PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 648

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Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).

Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1190

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NASA SP.

NASA SP. PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 654

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Journal of the American Helicopter Society

Journal of the American Helicopter Society PDF Author:
Publisher:
ISBN:
Category : Helicopters
Languages : en
Pages : 1112

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Book Description