Subsonic Wind Tunnel, Low turbulence, Research Facility,
Velocity up to 100 m/s

F2 Wind Tunnel overview

The F2 subsonic continuous flow wind tunnel is a research facility allowing the use of large size models.

Sting set-up

Motorised floor turret
  • Test section dimensions:
    • length: 5 m,
    • width: 1.4 m,
    • height: 1.8 m.
  • The wind tunnel is equipped with a 12 bladed fan driven by a 680 kW direct current motor. The velocity can be continuously varied from 0 to 100 m/s by adjusting the motor speed, with fully automated control within +/-0,1m/s.
  • The total temperature is controlled in ± 0,5°C by a water cooler.
  • The settling chamber is equipped with 4 screens, and a honeycomb filter, which, in conjunction with a contraction ratio of 12, supply a flow with a very low level of turbulence in the test section (less than 0.05 %).
  • Lateral, ceiling and floor walls can be adapted to the test. The set of available walls includes glass walls for optical access.
  • A dedicated bench motorized along the three axes allows displacement of optical measurement systems for flow survey around the model.
  • A specific wall element is dedicated to motorized flow survey.
  • Compress air up to 9 bar available for cold or hot jet simulation.

Laser velocimetry on the motorized bench - Wing model on motorized wall turret

Motorized flow survey wall element (Hot wire coupled with LDV)

Measurement techniques

IRT visualization of boundary layer transition

LDV measurement

PIV measurement

Typical tests

  • The wind tunnel is well adapted to study complex flow phenomena (three dimensional boundary layer, flow separation, jet interaction, wakes...)
  • Boundary layer transition.
  • Two-dimensional airfoil tests.
  • Aeroacoustics.
  • Dynamic and static stall.
  • Active flow control (vortex generator, plasma actuators ...)
  • Probe calibration.



Technical documentation