The Boundary Layer Wind Tunnel is a closed-circuit wind tunnel capable of generating wind speeds up to 110 mph. It has an aerodynamic section and a boundary layer section. The boundary layer section is 6 ft. wide and 4 ft. high, and has 58 feet of upstream fetch for development of desired boundary layer flow.

Instrumentation

• Cobra probes for wind measurement
• Laser displacement sensors for displacement measurement
• Force transducers for force measurement
• A Scanivalve system for pressure measurement
• A particle image velocimetry system and a smoke generator for flow visualization

What gets tested here

• Wind-induced vibration of cables on cable-stayed bridges
• Traffic signal support structures
• Evaluation of wind loading on sign structures