Design Construction And Calibration Of A Boundary Layer Research Wind Tunnel
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Wind Tunnel Test Techniques
Author | : Colin Britcher |
Publisher | : Academic Press |
Total Pages | : 672 |
Release | : 2023-10-20 |
Genre | : Technology & Engineering |
ISBN | : 0128181001 |
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
Design and Calibration of the Mixing Layer and Wind Tunnel
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 36 |
Release | : 2018-07 |
Genre | : |
ISBN | : 9781722148676 |
A detailed account of the design, assembly and calibration of a wind tunnel specifically designed for free-shear layer research is contained. The construction of this new facility was motivated by a strong interest in the study of plane mixing layers with varying initial and operating conditions. The Mixing Layer Wind tunnel is located in the Fluid Mechanics Laboratory at NASA Ames Research Center. The tunnel consists of two separate legs which are driven independently by centrifugal blowers connected to variable speed motors. The blower/motor combinations are sized such that one is smaller than the other, giving maximum flow speeds of about 20 and 40 m/s, respectively. The blower speeds can either be set manually or via the Microvax II computer. The two streams are allowed to merge in the test section at the sharp trailing edge of a slowly tapering splitter plate. The test section is 36 cm in the cross-stream direction, 91 cm in the spanwise direction and 366 cm in length. One test section side-wall is slotted for probe access and adjustable so that the streamwise pressure gradient may be controlled. The wind tunnel is also equipped with a computer controlled, three-dimensional traversing system which is used to investigate the flow fields with pressure and hot-wire instrumentation. The wind tunnel calibration results show that the mean flow in the test section is uniform to within plus or minus 0.25 pct and the flow angularity is less than 0.25 deg. The total streamwise free-stream turbulence intensity level is approximately 0.15 pct. Currently the wind tunnel is being used in experiments designed to study the three-dimensional structure of plane mixing layers and wakes. Bell, James H. and Mehta, Rabindra D. Unspecified Center NCC2-55...
Design, Construction and Calibration of the UTIAS Planetary Boundary Layer Simulation Tunnel
Author | : L. D (Lloyd Duff) Reid |
Publisher | : Institute for Aerospace Studies, University of Toronto |
Total Pages | : |
Release | : 1974 |
Genre | : Boundary layer (Meteorology) |
ISBN | : |
Design and Calibration of the Mixing Layer and Wind Tunnel
Author | : Joint Institute for Aeronautics and Acoustics |
Publisher | : |
Total Pages | : 42 |
Release | : 1989 |
Genre | : |
ISBN | : |
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 |
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.
A Research Hydraulic Flume for Modeling Drifting Snow: Design, Construction and Calibration
Author | : Darryl J. Calkins |
Publisher | : |
Total Pages | : 24 |
Release | : 1974 |
Genre | : Flumes |
ISBN | : |
A fluvial bed hydraulic flume was designed and constructed for the purpose of modeling drifting snow. The operation of the flume facility was designed to be simple. Three butterfly valves control the operation of the storage tank system, and a variable-speed control on the pump-motor unit permits a wide range of flow velocities for any given depth. The discharge can be monitored continuously from a differential-pressure transducer which is connected to the venturi. Ease of operation allows for a greater flexibility in the design of experiments in the hydraulic flume facility. (Modified author abstract).