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Large Low Speed Wind Tunnel 2.1 m (6 ft 11 in) by 1.5 m (4 ft 11 in) Low Turbulence Wind Tunnel 0.8 m (2 ft 7 in) by 0.6 m (2 ft 0 in) Open Jet Wind Tunnel 1.1 m (3 ft 7 in) diameter United Kingdom University of British Columbia Boundary Layer Wind Tunnel [90] 2.5 m × 1.6 m × 23.6 m (8 ft 2 in × 5 ft 3 in × 77 ft 5 in)
Wind tunnel test sections range in size from less than a foot across, to over 100 feet (30 m), and with air speeds from a light breeze to hypersonic. The earliest wind tunnels were invented towards the end of the 19th century, in the early days of aeronautical research, as part of the effort to develop heavier-than-air flying machines.
Results of wind tunnel tests of these models are generally published in the form of nondimensional aerodynamic coefficients (thus being made independent of model size) and made available to the wind-tunnel community, often in review reports containing inter-facility comparisons of data, [5] [8] [9] [10] discussing observed scatter of results ...
Transonic wind tunnels, between Mach 0.75 and Mach 1.2 (920 and 1,500 km/h; 570 and 910 mph; 260 and 410 m/s), are designed on similar principles as subsonic tunnels but present additional challenges, primarily due to the reflection of shock waves from the walls of the test section. To mitigate this, perforated or slotted walls are used to ...
The Full-Scale Tunnel [4] (abbreviated FST, also known as the 30-by 60-Foot Tunnel [5]) was a wind tunnel at NASA's Langley Research Center. It was a National Historic Landmark . In 1929, National Advisory Committee for Aeronautics began construction of the world's first full-scale wind tunnel, where high-performance airplane would be tested.
AGARD-B is a standard wind tunnel model (calibration model) that is used to verify, by comparison of test results with previously published data, the measurement chain in a wind tunnel. Together with its derivative AGARD-C it belongs to a family [1] of AGARD standard wind tunnel models.
Giro's Syntax helmet has 25 wind tunnel vents with internal channeling and is lightweight. (Psst: it also comes in nine different colors and multiple sizes.) $99.17 at amazon.com.
A Trisonic Wind Tunnel (TWT) ... A distinguishing feature of the NATWT was the size of its test section [7 by 7 feet (2.1 m × 2.1 m)]. Unlike most blow-down wind ...