The High Pressure Wind Tunnel Göttingen (HDG) is a continuously operated, pressurized wind tunnel with a closed test section of 0.6 x 0.6 x 1 m³ in size. It is a facility especially for the experimental simulation of flows with very high Reynolds numbers. To achieve these Reynolds numbers, the entire wind tunnel can be pressurized up to 100 bar. This allows realistic Reynolds numbers to be achieved for very large structures such as aircraft, vehicles, wind turbines or buildings.
Due to its uniqueness and suitability for cross-sectional tasks, the HDG is used in DLR's Aeronautics, Energy and Transport programs. In the field of aeroelasticity, fluid-structure interactions on large structures such as (solar) towers or bridges (e.g. bridge over the Great Belt) and offshore platforms are also investigated. As part of DLR's digitization strategy, special flow conditions can be simulated in the wind tunnel and data can be measured to validate numerical methods.
The wind tunnel is also available for use by external industrial partners and universities.