Laminar Wind Tunnel

Institute of Aerodynamics and Gas Dynamics

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.

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Schematic structure of the Laminar Wind Tunnel
Schematic structure of the Laminar Wind Tunnel
Image: IAG Universität of Stuttgart

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

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

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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

Measurement technique

Model construction
Laminar Wind Tunnel workgroup

Contact

This image shows Ulrich Deck, M.Sc.

Ulrich Deck, M.Sc.

 

Head of working group Laminar Wind Tunnel

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