Application of the Leading-edge-suction Analogy to Prediction of Longitudinal Load Distribution and Pitching Moments for Sharp-edged Delta Wings

Application of the Leading-edge-suction Analogy to Prediction of Longitudinal Load Distribution and Pitching Moments for Sharp-edged Delta Wings PDF Author: Melvin H. Snyder
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 28

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Book Description
The leading-edge-suction analogy of Polhamus has been used to develop the longitudinal load distribution of the vortex lift for delta wings. This distribution is shown to be similar in shape to that of the potential-flow longitudinal loading for delta wings having aspect ratios of 2 or less. The totals of the two theoretical distributions for delta wings with an aspect ratio near 1 are in good agreement with the experimentally determined loadings over the angle-of-attack range from 0 to 30 deg. The corresponding predicted pitching moments show slightly more stability than those measured, because of loss of lift near the wing tips.

Application of the Leading-edge-suction Analogy to Prediction of Longitudinal Load Distribution and Pitching Moments for Sharp-edged Delta Wings

Application of the Leading-edge-suction Analogy to Prediction of Longitudinal Load Distribution and Pitching Moments for Sharp-edged Delta Wings PDF Author: Melvin H. Snyder
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 28

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Book Description
The leading-edge-suction analogy of Polhamus has been used to develop the longitudinal load distribution of the vortex lift for delta wings. This distribution is shown to be similar in shape to that of the potential-flow longitudinal loading for delta wings having aspect ratios of 2 or less. The totals of the two theoretical distributions for delta wings with an aspect ratio near 1 are in good agreement with the experimentally determined loadings over the angle-of-attack range from 0 to 30 deg. The corresponding predicted pitching moments show slightly more stability than those measured, because of loss of lift near the wing tips.

NASA Technical Note

NASA Technical Note PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 478

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Some Recent Applications of the Suction Analogy to Vortex-lift Estimates

Some Recent Applications of the Suction Analogy to Vortex-lift Estimates PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 892

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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.

NASA Technical Report

NASA Technical Report PDF Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 886

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Extension of Leading-edge-suction Analogy to Wings with Separated Flow Around the Side Edges at Subsonic Speeds

Extension of Leading-edge-suction Analogy to Wings with Separated Flow Around the Side Edges at Subsonic Speeds PDF Author: John E. Lamar
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 84

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Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 528

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A Selective Bibliography on High-angle-of-attack Aerodynamics of Aircraft and Aircraft Components at Subsonic Speeds

A Selective Bibliography on High-angle-of-attack Aerodynamics of Aircraft and Aircraft Components at Subsonic Speeds PDF Author: Henry W. Woolard
Publisher:
ISBN:
Category : Aerodynamic measurements
Languages : en
Pages : 40

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Transonic Pressure Measurements and Comparison of Theory to Experiment for an Arrow-wing Configuration

Transonic Pressure Measurements and Comparison of Theory to Experiment for an Arrow-wing Configuration PDF Author:
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 500

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Book Description
A wind tunnel test of an arrow-wing-body configuration consisting of flat and twisted wings as well as a variety of leading- and trailing-edge control surface deflections, was conducted at Mach numbers from 0.4 to 1.1 to provide an experimental pressure data base for comparison with theoretical methods. Theory-to-experiment comparisons of detailed pressure distributions were made using current state-of-the-art attached and separated flow methods. The purpose of these comparisons was to delineate conditions under which these theories are valid for both flat and twisted wings and to explore the use of empirical methods to correct the theoretical methods where theory is deficient. The results are summarized.

NASA Contractor Report

NASA Contractor Report PDF Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 518

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Book Description