Low Speed Wind Tunnels

We offer:

Measurement of aerodynamic characteristics of 2D airfoils, 3D models (scale models of aircraft, cars, trains and other transport vehicles, their parts, etc), full scale measurement of devices which are exposed to wind such as aerials, radars, etc. 

  • Force measurement by means of internal and external multi-component strain-gauge balance 
  • Pressure distribution measurement on model surfaces with pressure probes, thermo-cameras, etc. 
  • Calibration and measurement of probes and their characteristics (static pressure and total pressure probes, directional probes, etc.) 
  • Flow trajectory visualization and evaluation (PIV, helium bubbles, smoke, etc.), visual recordings with high-speed cameras 
  • Use of equipment for earth surface simulation, model manipulators, etc.
  • Flow velocity measurement with hot wire anemometers, PIV, vane anemometer
     

Equipment:

A closed circuit atmospheric wind tunnel of continuous run (3m LSWT): 

  • Tunnel to measure scale models´ aerodynamic characteristics 
  • Circular test section of 3 m dia x 3 m in length 
  • Maximum velocity 75 m/s with ventilation
  • Maximum velocity 90 m/s without ventilation
  • Max. deviation of local velocity from mean velocity less than 0.5 % 
  • Characteristic turbulence intensity 0.3
     

An open circuit atmospheric wind tunnel of continuous run (1.8m LSWT): 

  • Tunnel to measure scale models´ aerodynamic characteristics and probe calibration 
  • Circular test section of 1.8 m dia x 1.75 m in length 
  • Maximum velocity 55 m/s 
  • Max. deviation of local velocity from mean velocity less than 0.5 % 
  • Characteristic turbulence intensity 0.5 %
     

A closed circuit atmospheric wind tunnel of continuous run (0.6 m LSWT): 

  • Tunnel for probe calibration 
  • Circular test section 0.6 m dia 
  • Maximum velocity 65 m/s 
  • Max. deviation of local velocity from mean velocity less than 1 % 
  • Characteristic turbulence intensity 0.5 %
     

Customers:

  • Companies involved in the design and manufacture of aircraft and means of transport by land 
  • Manufacturers of fans, propellers and refrigerating technology 
  • Manufacturers of facilities resistant to wing load 
  • Aviation industry suppliers 
  • Users of pressure and velocity probes 
  • National and international research and development projects

 

Contact

Ing. Petr Vrchota, Ph.D.
Head of Aerodynamics, VZLÚ 
Tel: +420 225 115 260
e-mail: vrchota@vzlu.cz