中国航天
航天空气动力技术研究院
China Academy of Aerospace Aerodynamics (CAAA)

Gun Tunnel
      Hypervelocity piston gun tunnels are mainly used for pressure and force measurement of hypervelocity vehicle models, and for tests of aerodynamic heat transfer, free flight dynamic stability, stage separation, hot jet and cold jet simulation, roket firing simulation, shock interaction, flow visualization, etc.
      BIA has two piston gun tunnels, one is conventional piston type and the other is longshot free piston type. The main characteristic parameters are as follows:
Mach number
Nozzle
exit
diameter
(M)
Driving
gas
Pressure
of
driving
gas
(MPa)
Test
gas
To（K）
Po
（MPa）
Remax
（1/m）
t
(ms）
FD-20
8，
12，
15
 Φ0.4-0.5 air, nitrogen 6-100 air, nitrogen 900-1500 3-75 3×10exp7 15-30
FD-22
15，
20，
25
 Φ0.42-0.5 nitrogen 100 nitrogen 1500-3000 400 3×10exp7 20-40
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China Academy of Aerospace Aerodynamics
Address:17,Yun-gang West Road, Feng-tai District, Beijing
E-mail:caaa@bia701.com
Tel:(010)68743294 Fax:(010)68374758