Large Industrial Wind Tunnel

The Large I.F.I. Industrial Wind Tunnel is situated in wind tunnel building in the main
I.F.I. laboratory (Welkenrather Straße 120). Using the large nozzle (4 m width x 2.5 m height) the wind speed may be varied continuously up to a max. speed of  10 m/s. Using a smaller nozzle (dimension 2.25 m x 1.5 m)  the speed may be varied continuously
up to 20 m/s.

A turntable of diameter 6.5 m is fitted downsream of the nozzle. The open jet test
facility may be converted to a Eiffel-type, open jet wind tunnel giving a test section length of 10 m.