Subsonic Wind Tunnel, Low turbulence, Research Facility,
Velocity up to 100 m/s.
The F2 subsonic continuous flow wind tunnel is a research facility allowing the use of large size models.
- 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)
Three components Laser Doppler Velocimetry (LDV).
Stereo Particle Image Velocimetry (SPIV)
Available on demand: Time Resolved PIV (TR-PIV), Background Oriented Schlieren (BOS), Pressure Sensitive Paint (PSP), acoustic measurement with wall-mounted microphone array.
IRT visualization of boundary layer transition
- 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.
- Dynamic and static stall.
- Active flow control (vortex generator, plasma actuators ...)
- Probe calibration.