Measurement in low-velocity wind tunnels

Measurements in VZLU’s low-velocity wind tunnels provides unique opportunities in the area of aerodynamic research, development, and testing in many technical fields. It also serves for numeric methods validation, verification of characteristics of examined models, and for development of measurement techniques.

We offer

  • Measurement of aerodynamic characteristics of 2D airfoils
  • Measurement of aerodynamic characteristics of 3D models (models of aircrafts and their parts, etc.)
  • Measurement of wind resistance
  • Force measurement by means of internal and external multi-component strain-gauge balance
  • Pressure distribution measurement on model surfaces with pressure probes
  • Flow trajectory visualization and evaluation (PIV, helium bubbles, smoke, etc.), visual recordings with high-speed cameras
  • Flow velocity measurement with hot wire anemometers, PIV
  • Calibration and measurement of probes and their characteristics (static pressure and total pressure probes, directional probes, etc.)
  • Stability tests of structures against the effects of wind and airflow

Contact

Ing. Petr Vrchota, Ph.D.

+420 225 115 260 / vrchota@vzlu.cz

Related infrastructure

CLOSED CIRCUIT ATMOSPHERIC WIND TUNNEL OF CONTINUOUS RUN (3M LSWT):

  • Circular test section of 3 m diameter x 3 m in length
  • Maximum velocity 80 m /s with cooling (constant temperature) of the air flow
  • Maximum velocity  90 m /s without airflow cooling
  • Max. deviation of local velocity from mean velocity less than 0.5 %
  • Characteristic turbulence intensity 0.3%

Eiffel-type open circuit atmospheric wind tunnel (1.8 m LSWT):

  • Circular test section of 1.8 m diameter 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%

CLOSED CIRCUIT ATMOSPHERIC WIND TUNNEL OF CONTINUOUS RUN (0.6 M LSWT):

  • Circular measuring space with a diameter of 0.6 m
  • Maximum velocity 65 m / s
  • Max. deviation of local velocity from mean velocity less than 1%
  • Characteristic turbulence intensity 0.5%

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