Trent Environmental Wind Tunnel Research Group



The Wind Tunnel


The Trent University environmental wind tunnel (TEWT ) is a low-speed research facility designed for simulation of the atmospheric boundary layer both in clean air and with sediment transport. The development of this facility has been completed entirely 'in-house' with funds provided by the Natural Sciences and Engineering Research Council, the Canadian Foundation for Innovation (CFI) and Trent University (TU-NSRC). In 1997, the tunnel was expanded and relocated to its present site within a climate controlled laboratory in the Environmental Sciences Building.

TEWT is an example of an open-loop system wherein the intake and exhaust ends of the tunnel are not connected. One advantage of the open-loop design of the TEWT is that the ‘clean’ intake air is drawn from the conditioned ambient air in the laboratory, as compared to the particle-laden exhaust flow which may be routed outdoors through a duct. Each year tonnes of sediment are propelled through the tunnel as part of ongoing studies of dryland processes at Trent University. Low temperature simulation (down to -10°C) and full humidity control are several of the primary distinguishing features of this facility.


  • Dantec 2-component LDA
  • Konica-Minolta Vivid 9i non-contact 3D digitizer
  • PCO Highspeed digital camera (>1000fps)
  • PCO 16-bit B&W Low Noise digital camera
  • Windspeed profiling system - pitot tubes
  • Guelph-Trent sediment trap
  • TSI DustTrak aerosol monitors
  • Particle counters - Sensit, Wenglor