Construction, Wind Tunnel Testing and Data Analysis for a 1/5 Scale Ultra-Light Wing Model

Construction, Wind Tunnel Testing and Data Analysis for a 1/5 Scale Ultra-Light Wing Model
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 46
Release: 2018-08-20
Genre:
ISBN: 9781722127503

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This report documents the construction, wind tunnel testing, and data analysis of a 1/5 scale ultra-light wing section. Wind tunnel testing provided accurate and meaningful lift, drag, and pitching moment data. This data was processed and graphically presented as follows: C(sub L) vs. gamma; C(sub D) vs. gamma; C(sub M) vs. gamma; and C(sub L) vs. C(sub D). The wing fabric flexure was found to be significant and its possible effects on aerodynamic data was discussed. The fabric flexure is directly related to wing angle of attack and airspeed. Different wing section shapes created by fabric flexure are presented with explanations of the types of pressures that act upon the wing surface. This report provides conclusive aerodynamic data for ultra-light wings. James, Michael D. and Smith, Howard W. Unspecified Center NAG1-345...

Aeronautical Engineering

Aeronautical Engineering
Author:
Publisher:
Total Pages: 722
Release: 1993
Genre: Aeronautics
ISBN:

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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)

Wind Tunnel Test Techniques

Wind Tunnel Test Techniques
Author: Colin Britcher
Publisher: Academic Press
Total Pages: 672
Release: 2023-10-20
Genre: Technology & Engineering
ISBN: 0128181001

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Wind Tunnel Test Techniques: Design and Use at Low and High Speeds with Statistical Engineering Applications provides an up-to-date treatment of the topic. Beginning with a brief history of wind tunnels and its types and uses, the book goes on to cover subsonic, supersonic and hypersonic wind tunnel design and construction, calibration, boundary corrections, flow quality assessment, pressure surveys, and dynamic testing. It also focuses on wind tunnel facilities, making it useful for both the designer and operator. Engineers and graduate students in aerospace, automotive and similar programs will find this book useful in their work with experimental aerodynamics, gas dynamics, facility design and performance. Deals with a broad range of flow speeds in wind tunnels, from low speed to high speed Provides a discussion of similarity laws as well as material on statistical analysis Includes coverage on facility-to-facility and facility-to-CFD correlation Presents advanced topics such as cryogenic wind tunnels, ground simulation in automotive testing, and propulsion testing

Wind Tunnel Test Data Report of a Powered 1/5 Scale ARL/Bell V/STOL Aircraft Model. Phase II.

Wind Tunnel Test Data Report of a Powered 1/5 Scale ARL/Bell V/STOL Aircraft Model. Phase II.
Author: P. E. Ryan
Publisher:
Total Pages: 214
Release: 1969
Genre:
ISBN:

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Tests of a 1/5 scale powered V/STOL aircraft model were conducted in the Langley 7 x 10 wind tunnel. Vehicle aerodynamics and stability and control characteristics were investigated. The test results are presented without analysis.

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.

Wind Tunnel/flight Data Correlation (u).

Wind Tunnel/flight Data Correlation (u).
Author: James A. Behal
Publisher:
Total Pages: 692
Release: 1971
Genre: Buffeting (Aerodynamics)
ISBN:

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A program was conducted to obtain data, both steady state and dynamic, from wind tunnel models and full scale flight tests of the RA-5C aircraft. Data were acquired on 0.228 and 0. 125 scale RA-5C inlet models and on a fully instrumented flight test RA-5C aircraft. Interim data reports presenting the data acquired during each test have been published. These data were utilized in this report to develop scaling techniques for correlating small scale model wind tunnel data with full scale flight data. Data presented include duct steady state operating characteristics and pressure distributions in the inlet and at the engine face. Dynamic data are presented in the form of engine face turbulence contour plots, radial turbulence distributions and selected spectral data functions. Data are presented for variations of angle of attack, angle of yaw, Reynolds number, ramp angle, secondary flow rates and inlet diverter width. Brief descriptions of the model and test methods are also presented.