SAFL has a large-scale wind tunnel that is designed to study the boundary layer effects on natural and/or urban environments. The atmospheric boundary layer (ABL) tunnel is powered by at 200 hp fan and can operate with recirculatingor once-through flow and can reach speeds up to 148 ft/second (45 meters/second). The tunnel has temperature control capabilities that allow for study effects of thermal stratification in atmosphere on structures.     

  • Plan length: 123 ft (37.5 m)
  • Glass observation wall
  • Rotating turntable
  • Smoke generator
  • Measurement capabilities: laser instrumentation and imaging system (PIV), hotwire, croswire and 3-wire anemometers, pitot-static tubes, force balance, heat flux sensors, termocouple array
  • Automated local 3D traverse system
  • Ability to operate with recirculating or once-through flow

Test Section 1: 52 L x 5 W x 5.6 D ft (16 x 1.5 x 1.7 m)
Discharge velocity: 148 ft/s (45 m/s)

Test Section 2: 60 L x 8 W x 8 D ft (18 x2.4 x 2.4 m)
Discharge velocity: 62 ft/s (19 m/s)