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  AERODYNAMIC DEPARTMENT

1.5-METER LOW SPEED WIND TUNNEL T1

The T1 Wind Tunnel is a closed-circuit, continuous-flow low speed tunnel with a 1.5 meter diameter open test section. Typical tests include measurements of forces and moments, surface pressure distribution, and flow visualisation of models of various aircraft, helicopters, buildings, ships, cars, trains and two-dimensional airfoils. Aircraft models with up to 1.05 m wing span, half models of 1 m semi-spa, mockup body (buildings) of 1 m high or 0.18 m2 cross section area (perpendicular to flow direction) can be tested.

Testing activities

  • Airfoils model balance tests - 2D tests and airplane models - 3D tests,
  • Roughness effect tests,
  • Optimisation of flap geometry and position,
  • Hinge-moment optimisation for ailerons and tail units,
  • Pressure distribution tests,
  • Tufts and minitufts with UV-light flow visualisations,
  • Smoke flow visualisation.
  
1.5-METER LOW SPEED WIND TUNNEL T1 CHARACTERISTICS
Type of Wind Tunnel closed circuit with open test section
Test section
diameter 1.50 m
length 2.01 m
Maximum wind speed 40 m/s
Minimal wind speed 15 m/s
Turbulence intensity 0.5%
3D test model position
angle of attack α -15o ÷ +35o (for straight position)
sideslipe angle β ±35o
2D test model position
angle of attack α -10o ÷ +35o (for horizontal position)
Aerodynamic Department | Avionics and System Integration Department | Propulsion Department | Landing Gear Department | Prototype Workshops | Strength and Dynamics Department | Aircraft Design Team | Materials & Structures Research Center | EDC

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