Institute of Aerodynamics and Gas Dynamics

Laminar Wind Tunnel

The Laminar Wind Tunnel (LWT) is primarily used for measurements of two-dimensional airfoil models. It is an open-return tunnel (Eiffel type) with closed test section. It was set into operation in 1962 and has been used continuously since then.

Schematic structure of the Laminar Wind Tunnel
Schematic structure of the Laminar Wind Tunnel

Due to a wind shield ring in front of the suction opening, the operation of the tunnel is independent of wind and atmospheric turbulence.

Podcast:

Aerodyamik und der Windkanal der Uni Stuttgart
Aerodyamik und der Windkanal der Uni Stuttgart

Zum Podcast: Aerodyamik und der Windkanal der Uni Stuttgart

View into the test section of the Laminar Wind Tunnel

Technical Data

Maximum Speed:

90 m/s

Reynolds number range:

5 x 106 per meter chord of the model

Turbulence intensity:

2 x 10-4 to 5 x 10-4

Fan:

8-petalled, diameter 2.7m; rotor blade angle variable

Mechanical drive:

DC motor 220kW, thyristor controlled rotational speed

Length:

46 m

Cross section of the measuring chamber:

2.73 m x 0.73 m = 2 m2

Aerea of filter pads:

40 m2

Aerea of screens:

200 m2

Contraction ratio:

100:1

Contact

This picture showsWerner Würz
Dr.-Ing.

Werner Würz

Head working group Laminar Wind Tunnel

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