Experimental Activities

Most of the experimental work is performed utilizing the Laboratory's five wind tunnels. Wind tunnel experiments are primarily done for the purpose of basic research as well as applied testing to cover needs of vehicle industries and the sporting world. In addition to science, answers for product development and flight safety issues are sought.  

The Laboratory also performs field measurements. These comprise flow investigations in flight and other vehicles, industrial and power plants using mobile flow measurement equipment.

 

 

Trisonic Wind tunnel TWT

          

 Some models made in the Laboratory
 

 

Total Pressure Rake

 Schlieren Image

Wing-Body Model
     

   

  • Test Section 0,3m x 0,3m 

  • Blow-down operation

  • Mach number range 0,5...3,5 

  • Fixed Nozzle blocks in the supersonic part of the range

  • Continuous Mach number variation at Ma < 1,2 

  • Internal six component balance

  • Commissioned 1997

  • Purpose: Aerodynamics of projectiles and missiles, 
    CFD-validation, student projects

Low Speed Wind Tunnel

Some models made in the Laboratory

Mig-21 Fighter

Total pressure prope for the
Huygens-spacecraft 

  • Test Section 2m x 2m

  • Max. flow speed 70 m/s

  • External 6-component balance (acquired 1993) 

  • Commissioned 1970 

  • Purpose: Testing of aircraft, ship and automotive vehicle models, determination of wind loads on structures, calibration of wind and other flow measurement instruments, testing related to sports like ski jumping, sailing etc.

 

Wind Engineering Tunnel 

        Models made by the Laboratory or VTT

NLG-tanker

 Harbour terrain model for
for wind condition measurements

  • Test Section 2,5 m x 1,5 m 

  • Max. flow speed 30 m/s 

  • External 6-component balance 

  • Traversing system for hot-wire anemometer
    measurements

  • Commissioned 1993 

  • Usage: Simulation of natural wind