Wind Tunnels of NASA

Wind Tunnels of NASA PDF Author: Donald D. Baals
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 218

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Wind Tunnels of NASA

Wind Tunnels of NASA PDF Author: Donald D. Baals
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 218

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Book Description


Free-flight Testing in High Speed Wind Tunnels

Free-flight Testing in High Speed Wind Tunnels PDF Author: Bain Dayman
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 112

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Low-Speed Wind Tunnel Testing

Low-Speed Wind Tunnel Testing PDF Author: Jewel B. Barlow
Publisher: John Wiley & Sons
ISBN: 0471557749
Category : Technology & Engineering
Languages : en
Pages : 738

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Book Description
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.

Transonic Wind Tunnel Testing

Transonic Wind Tunnel Testing PDF Author: B. H. Goethert
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 420

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Book Description
Numerous aspects of transonic aerodynamics include wall interference corrections in conventional wind tunnels, subsonic flow in a variety of wind tunnels, and test results from transonic wind tunnels. 1961 edition.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 256

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High-speed Wind Tunnels

High-speed Wind Tunnels PDF Author: Luigi Crocco
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 236

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Book Description
The importance assumed in recent times by experimental supersonic wind tunnels, as well as the power required, has brought about the need for a study which would permit a comparison of the types tested and the principal theoretical plans.

High-speed Wind Tunnel Testing

High-speed Wind Tunnel Testing PDF Author: Alan Pope
Publisher:
ISBN:
Category :
Languages : en
Pages :

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On Subscale Flight Testing

On Subscale Flight Testing PDF Author: Alejandro Sobron
Publisher: Linköping University Electronic Press
ISBN: 9176852202
Category :
Languages : en
Pages : 130

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Book Description
Downscaled physical models, also referred to as subscale models, have played an essential role in the investigation of the complex physics of flight until the recent disruption of numerical simulation. Despite the fact that improvements in computational methods are slowly pushing experimental techniques towards a secondary role as verification or calibration tools, real-world testing of physical prototypes still provides an unmatched confidence. Physical models are very effective at revealing issues that are sometimes not correctly identified in the virtual domain, and hence can be a valuable complement to other design tools. But traditional wind-tunnel testing cannot always meet all of the requirements of modern aeronautical research and development. It is nowadays too expensive to use these scarce facilities to explore different design iterations during the initial stages of aircraft development, or to experiment with new and immature technologies. Testing of free-flight subscale models, referred to as Subscale Flight Testing (SFT), could offer an affordable and low-risk alternative for complementing conventional techniques with both qualitative and quantitative information. The miniaturisation of mechatronic systems, the advances in rapid-prototyping techniques and power storage, as well as new manufacturing methods, currently enable the development of sophisticated test objects at scales that were impractical some decades ago. Moreover, the recent boom in the commercial drone industry has driven a quick development of specialised electronics and sensors, which offer nowadays surprising capabilities at competitive prices. These recent technological disruptions have significantly altered the cost-benefit function of SFT and it is necessary to re-evaluate its potential in the contemporary aircraft development context. This thesis aims to increase the comprehension and knowledge of the SFT method in order to define a practical framework for its use in aircraft design; focusing on low-cost, short-time solutions that don’t require more than a small organization and few resources. This objective is approached from a theoretical point of view by means of an analysis of the physical and practical limitations of the scaling laws; and from an empirical point of view by means of field experiments aimed at identifying practical needs for equipment, methods, and tools. A low-cost data acquisition system is developed and tested; a novel method for semi-automated flight testing in small airspaces is proposed; a set of tools for analysis and visualisation of flight data is presented; and it is also demonstrated that it is possible to explore and demonstrate new technology using SFT with a very limited amount of economic and human resources. All these, together with a theoretical review and contextualisation, contribute to increasing the comprehension and knowledge of the SFT method in general, and its potential applications in aircraft conceptual design in particular.

Report

Report PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 620

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NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, *

NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, * PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1070

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Book Description