The Spanwise Lift Distribution of Swept Wings at Subsonic Speeds PDF Download

Author: Eli Herman Benstein
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 124

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Author: Franklin W. Diederich
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 173

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Book Description
This paper supplements and is intended to be used in conjunction with NACA TN 3014, where the same type of information, calculated in the same way, is presented for 19 unswept wings.

Author: Robert Thomas Jones
Publisher: Princeton University Press
ISBN: 1400860776
Category : Technology & Engineering
Languages : en
Pages : 227

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Book Description
Originator of many of the theories used in modern wing design, Robert T. Jones surveys the aerodynamics of wings from the early theories of lift to modern theoretical developments. This work covers the behavior of wings at both low and high speeds, including the range from very low Reynolds numbers to the determination of minimum drag at supersonic speed. Emphasizing analytical techniques, Wing Theory provides invaluable physical principles and insights for advanced students, professors, and aeronautical engineers, as well as for scientists involved in computational approaches to the subject. This book is based on over forty years of theoretical and practical work performed by the author and other leading researchers in the field of aerodynamics. Originally published in 1990. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Author: Bernd Chudoba
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Robert T. Jones
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 708

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Book Description
The problem of the minimum induced drag of wings having a given lift and a given span is extended to include cases in which the bending moment to be supported by the wing is also given. Expressions for the spanwise load distribution and the minimum drag in terms of the lateral position of the load centroid are given. The results show a 15-percent reduction of the induced drag with a 15-percent increase in span over that for an elliptic loading having the same total lift and bending moment.

Author: John DeYoung
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 106

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Book Description
A simplified lifting-surface theory that includes effects of compressibility and spanwise variation of section lift-curve slope is used to provide charts with which antisymmetric loading due to arbitrary antisymmetric angle of attack can be found for wings having symmetric plan forms with a constant spanwise sweep angle of the quarter-chord line. Consideration is given to the flexible wing in roll. Aerodynamic characteristics due to rolling, deflected ailerons, and sideslip of wings with dihedral are considered. Solutions are presented for straight-tapered wings for a range of swept plan forms.

Author: Edward J. Hopkins
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 40

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Book Description
Lift, pitching-moment, and pressure distribution were measured on a wing which was swept -40, -30, 0, 35, and 45 degrees. The wing span was decreased to give aspect ratios 6.8, 5.3, 4.2, 3.4, and 2.8. The effects of independent variations of sweep and aspect ratio on the lift, pitching-moment, and span-load characteristics of the wings are compared with the effects estimated by use of the Weissinger method.

Author: John DeYoung
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 86

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Book Description
Further use of the method gives downwash in the pi vertical center of the wake of the wing.

Author: Edward C. Polhamus
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 26

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Book Description
A method of modifying existing correction factors of lifting-surface theory to account approximately for the effects of sweep has been derived, and these factors have been applied to existing lifting-line theories for the lift and damping in roll of swept wings. A comparison with experimental data in the low-speed and low lift range indicated good agreement for wings of any plan form. If the Glauert-Prandtl transformation is used, the formulas obtained can be applied to swept wings at subsonic speeds below the critical speed.

Author: Doris Cohen
Publisher: Princeton University Press
ISBN: 1400874947
Category : Technology & Engineering
Languages : en
Pages : 251

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Book Description
Part of the Princeton Aeronautical Paperback series designed to bring to students and research engineers outstanding portions of the twelve-volume High Speed Aerodynamics and Jet Propulsion series. These books have been prepared by direct reproduction of the text from the original series and no attempt has been made to provide introductory material or to eliminate cross reference to other portions of the original volumes. Originally published in 1960. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.