The Open-Jet Wind Tunnel (OJWT) is an open section, closed circuit tunnel, designed, built and commissioned by the Aeromechanical Systems Group. The Aeromechanical Systems Group is a research group based at the Defence Academy of the UK in Shrivenham, with diverse expertise in both aeronautical and power systems.

Summary of applications

Type: Open section, closed circuit

Nozzle: 1.1m x 1.5m elliptical

Force balance: 3-component, overhead electronic and mechanical 

Max flow speed: 35m/s

Turbulence intensity: 1% @ 10m/s, reducing to 0.25% with smaller nozzle and more screens

Other features: Nozzle rotatable to allow vertical major axis, rolling road available