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3.5 m×2.5m Low Speed Closed Circuit Wind Tunnel (FL-8)


3.5 m×2.5m Low Speed Closed Circuit Wind Tunnel (FL-8)

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3.5 m×2.5m Low Speed Closed Circuit Wind Tunnel (FL-8)



FL-8, with octagonal form test section, is Chinese earliest 3m scale wind tunnel being regarded as “Meritorious Wind Tunnel”, and almost all types of Chinese aircrafts have been tested here. After two upgrades in 1995 and 1999 respectively, it gets better flow field quality with up to0.0001drag measurement accuracy, and suits to do industrial low speed tests. Currently, it is mainly used to test a variety of military/civil models and facilities.

Main Performance:

Test section size:3.5 m×2.5m
Max velocity:73m/s


rear sting support, ventral sting support, wire suspension and half model support.


Full model/half model/component force test, Unsteady flow test at high angle of attack, Engine intake and exhaust simulation test of turbojet and turbofan airplane, Slipstream test, Dynamic derivative test, Rotary balance test, Large amplitude oscillation test, Blow flap test, Buffet test, Store release test, Hinge-moment test, thrust vector test, jet test, industrial aerodynamic test in wind tunnel including Parachute test, Ejection lifesaving device test, Flow visualization and measurements, Building structure test, Automobile test, Protection forest test, Skiing test and so forth .