VELUX Open Jet Facility

The airfoil sections with a span of 1.9m and a chord of 0.6m are mounted in a test stand 1.7m above the tunnel floor and 3.2m from the nozzle outlet with end plates to limit three-dimensional flow effects. Three Pitot tubes measure static and total pressure at different locations in the test section allowing estimation of the free stream reference pressures.

The vertical span of the wake rake is 0.456m. The distance between the airfoil trailing edge and the wake rake is 0.7 airfoil chords and the centre line of the wake rake is placed at the height of the trailing edge at 0° angle of attack in the middle of the airfoil section. The wake rake is not traversed in the horizontal or the vertical directions.