Boundary-Layer Wind Tunnel

Institute of Aerodynamics and Gas Dynamics

In the Boundary-Layer Wind Tunnel (Eiffel type with rectangular channel cross-section and closed measuring chamber; GWK) of the IAG, certain velocity profiles and turbulence structures can be generated by various combinations of inlet obstacles and ground roughness in order to simulate the turbulent boundary layer flow of the natural wind.

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Schematic sketch of the Boundary-Layer Wind Tunnel
Schematic sketch of the Boundary-Layer Wind Tunnel
Drive

electrohydraulic; blower fan speed continuously adjustable

Drive power

maximum 120 KW

Maximum velocity

19 m/s

Cross section of the test section

2,5 m x 2,0 m [w x h]

Inlet of the Boundary-Layer Wind Tunnel
Inlet of the Boundar-Layer Wind Tunnel

In the Boundary-Layer Wind Tunnel (Eiffel type with rectangular channel cross-section and closed measuring chamber; GWK) of the IAG, certain velocity profiles and turbulence structures can be generated by various combinations of inlet obstacles and ground roughness in order to simulate the turbulent boundary layer flow of the natural wind.

The GWK can therefore be used to investigate the flow around buildings (e.g. to determine wind loads) and to measure velocity fields over complex topography (e.g. flow around hills or steep slopes).

Figure 1: Blower of the GWK, view in flow direction / Figure 2: Inlet obstacles and bottom roughness, view against the flow direction
Figure 1: Blower of the GWK, view in flow direction / Figure 2: Inlet obstacles and bottom roughness, view against the flow direction

                                                    

Contact

Bernd Peters

Dr.-Ing.

Academic Staff Member working group Environmental Aerodynamics

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