Arc Jet Tunnel

Low Speed Wind Tunnel

Transonic Wind Tunnel

Supersonic Wind Tunnel

Hypersonic Shock Tunnel

Small Scale Wind Tunnels


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About the ARC

Low Speed Wind Tunnel
The low speed wind tunnel is a closed-circuit, continuous flow type with a 100 horsepower variable frequency drive. The test section flow area is 0.6 x 0.9 meters (2 x 3 feet). The tunnel is capable of a maximum flow velocity of 50 meters per second. The tunnel is also equipped with a 6-component force balance, a multiplexed data acquisition system, and equipment for smoke visualization. An auxiliary high-pressure air supply is also available. The tunnel has been used to support individual undergraduate and graduate research projects as well as many contractual projects in fields like airfoils and wings, flow-induced vibration of car phone antennas, cup anemometers, and golf clubs.


The tunnel was first designed by a senior aerospace engineering student in 1964-65, with the first test run occurring in June 1967. Until 2007, many of the components remained the same as they were as shown in the 1968 tunnel manual. In 2007 a new 60 Hz, 1780 rpm Marathon Electric motor was installed. The propeller section, which generates the flow, was also rebalanced and the bearings were replaced. The six foot diameter wooden propeller contains six untwisted blades with an airfoil shape similar to a NACA 0012. This 6-blade propeller was originally used to break in engines. The propeller is still attached to an R-2800 aircraft engine nose section which is mounted in the center of the tunnel.