Rectangular Wind Tunnel Blocking Corrections Using The Velocity Ratio Method PDF Download

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Rectangular-wind-tunnel Blocking Corrections Using the Velocity-ratio Method

Rectangular-wind-tunnel Blocking Corrections Using the Velocity-ratio Method
Author: Rudolph W. Hensel
Publisher:
Total Pages: 708
Release: 1951
Genre: Mathematical analysis
ISBN:

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Calculations of the ratios of the velocity increments at test bodies to those at the tunnel walls caused by the solid blocking of these bodies within the walls of a closed rectangular wind tunnel are presented. The boides treated include two-dimensional airfoils; small bodies of revolution; straight, untapered, finite-span wings of varying span; and swept, untapered, finite-span wings of varying span. It is shown that, after wake blocking effects have been removed , the present method furnishes semiempirical blocking corrections for most wind-tunnel models and their components. The test section proportions of the Southern California Cooperative Wind Tunnel at CIT (ratio of height to width equal to 1/square root of 2) are used in the calculations.


Low-Speed Wind Tunnel Testing

Low-Speed Wind Tunnel Testing
Author: Jewel B. Barlow
Publisher: John Wiley & Sons
Total Pages: 738
Release: 1999-02-22
Genre: Technology & Engineering
ISBN: 0471557749

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A brand-new edition of the classic guide on low-speed wind tunnel testing While great advances in theoretical and computational methods have been made in recent years, low-speed wind tunnel testing remains essential for obtaining the full range of data needed to guide detailed design decisions for many practical engineering problems. This long-awaited Third Edition of William H. Rae, Jr.'s landmark reference brings together essential information on all aspects of low-speed wind tunnel design, analysis, testing, and instrumentation in one easy-to-use resource. Written by authors who are among the most respected wind tunnel engineers in the world, this edition has been updated to address current topics and applications, and includes coverage of digital electronics, new instrumentation, video and photographic methods, pressure-sensitive paint, and liquid crystal-based measurement methods. The book is organized for quick access to topics of interest, and examines basic test techniques and objectives of modeling and testing aircraft designs in low-speed wind tunnels, as well as applications to fluid motion analysis, automobiles, marine vessels, buildings, bridges, and other structures subject to wind loading. Supplemented with real-world examples throughout, Low-Speed Wind Tunnel Testing, Third Edition is an indispensable resource for aerospace engineering students and professionals, engineers and researchers in the automotive industries, wind tunnel designers, architects, and others who need to get the most from low-speed wind tunnel technology and experiments in their work.


High Speed Problems of Aircraft and Experimental Methods

High Speed Problems of Aircraft and Experimental Methods
Author: Allen F. Donovan
Publisher: Princeton University Press
Total Pages: 1021
Release: 2015-12-08
Genre: Science
ISBN: 140087503X

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Volume VIII of the High Speed Aerodynamics and Jet Propulsion series. This volume includes: performance calculation at high speed; stability and control of high speed aircraft; aeroelasticity and flutter; model testing; transonic wind tunnels; supersonic tunnels; hypersonic experimental facilities; low density wind tunnels; shock tube; wind tunnel measurements; instrumented models in free flight; piloted aircraft testing; free flight range methods. Originally published in 1961. 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.


Research Abstracts

Research Abstracts
Author: United States. National Advisory Committee for Aeronautics
Publisher:
Total Pages: 568
Release: 1951
Genre: Aeronautics
ISBN:

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Wind-tunnel Investigation of the Aerodynamic Characteristics in Pitch and Sideslip at High Subsonic Speeds of a Wing-fuselage Combination Having a Triangular Wing of Aspect Ratio 4

Wind-tunnel Investigation of the Aerodynamic Characteristics in Pitch and Sideslip at High Subsonic Speeds of a Wing-fuselage Combination Having a Triangular Wing of Aspect Ratio 4
Author: Paul G. Fournier
Publisher:
Total Pages: 34
Release: 1953
Genre: Airplanes
ISBN:

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The results presented in the present paper are part of a program conducted to investigate the effect of wing plan form on the aerodynamic characteristics in pitch, in sideslip, and during steady roll. This paper presents the aerodynamic characteristics in pitch and sideslip at high subsonic speeds of a wing-fuselage combination having a triangular wing of aspect ratio 4, a leading-edge sweep of angle of 45 degrees, and with an NACA 65A006 airfoil section parallel to the plane of symmetry.


Wind-tunnel Investigation at High Subsonic Speeds to Determine the Rolling Derivatives of Two Wing-fuselage Combinations Having Triangular Winds, Including a Semiempirical Method of Estimating the Rolling Derivatives

Wind-tunnel Investigation at High Subsonic Speeds to Determine the Rolling Derivatives of Two Wing-fuselage Combinations Having Triangular Winds, Including a Semiempirical Method of Estimating the Rolling Derivatives
Author: James W. Wiggins
Publisher:
Total Pages: 36
Release: 1954
Genre: Airplanes
ISBN:

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Method for Calculating Effects of Dissociation on Flow Variables in the Relaxation Zone Behind Normal Shock Waves

Method for Calculating Effects of Dissociation on Flow Variables in the Relaxation Zone Behind Normal Shock Waves
Author: John S. Evans
Publisher:
Total Pages: 668
Release: 1956
Genre: Air flow
ISBN:

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Because the chemical reaction rates needed to predict the dependence of degree of dissociation on distance behind the shock are not known, order-of-magnitude estimates of their values have been used in a numerical example, the purpose of which is to illustrate the use of reaction-rate equations to predict relaxation time and distance behind the shock front.


Wind-tunnel Investigation to Determine the Horizontal- and Vertical-tail Contributions to the Static Lateral Stability Characteristics of a Complete-model Swept-wing Configuration at High Subsonic Speeds

Wind-tunnel Investigation to Determine the Horizontal- and Vertical-tail Contributions to the Static Lateral Stability Characteristics of a Complete-model Swept-wing Configuration at High Subsonic Speeds
Author: James W. Wiggins
Publisher:
Total Pages: 692
Release: 1956
Genre: Airplanes
ISBN:

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An investigation was conducted in the Langley high-speed 7- by 10-foot tunnel to determine the horizontal- and vertical-tail contributions to the static lateral stability of a complete-model swept-wing configuration at high subsonic speeds. The results indicate that, in a general, Mach number effects within the range studied and wing effects on the tail contribution were small and the overall trends of the data of the present investigation agreed with those which have been established at low speeds.