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A sample wind tunnel layout showing some typical features including a test section and control room, a machine for pumping air continuously through ducting, and a nozzle for setting the test airspeed. A wind tunnel is "an apparatus for producing a controlled stream of air for conducting aerodynamic experiments". [1]
Low Speed Wind Tunnel 1.15 m (3 ft 9 in) by 0.95 m (3 ft 1 in) Flow Visualisation Wind Tunnel 0.90 m (2 ft 11 in) by 0.90 m (2 ft 11 in) United Kingdom University of Manchester [17] Operational Hypersonic wind tunnel 6 in (150 mm) diameter Trisonic wind tunnel 0.15 m (5.9 in) by 0.3 m (1 ft 0 in)
A Ludwieg tube is a wind tunnel that produces supersonic flow for short periods of time. A large evacuated dump tank is separated from the downstream end of a convergent-divergent nozzle by a diaphragm or fast acting valve. The upstream end of the nozzle connects to a long cylindrical tube, whose cross-sectional area is significantly larger ...
Social media users are sharing a surprisingly effective way to protect yourself indoors from the toxic wildfire smoke blanketing much of the East Coast: a box fan, four air filters and a whole lot ...
AGARD-C standard wind tunnel model on a sting fixture (CAD model) AGARD-C wind tunnel model on a bent sting (CAD model) A hypothetical wind tunnel model on a Z-sting (CAD model) In experimental fluid mechanics, a sting is a test fixture on which models are mounted for testing, e.g. in a wind tunnel. A sting is usually a long shaft attaching to ...
The low-speed wind tunnel is a closed-circuit, continuous flow tunnel with a 100 hp, variable frequency drive. The test section measures 0.6 by 0.9 meters and is capable of flow velocities up to 50 m/s. It is equipped with 3 and 6 component force balances and a PC-based multiplexed data acquisition system. Smoke visualization is also available.
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 ...
Designed for modeling of the air/land boundary layer, the wind tunnel can provide a circulating or once-through flow of air that can reach up to 148 ft/s. It is equipped with a glass observation wall, temperature and surface variation capabilities, a rotating turntable, smoke generator, and laser instrumentation.