The low speed wind tunnel MUB is a closed return atmospheric tunnel (Göttingen-type tunnel) with a 1,3 m x 1,3 m closed test section that can be operated at a maximum speed of 60 m/s.
The Große Wasserkanal Braunschweig (Large Watertunnel Braunschweig) is a joint project of the ISM and the Institute of Jet Propulsion and Turbomachinery. It is designed as a closed return tunnel with a test section cross-section of 1 m x 1 m and a working length of 6 m. The maximum flow velocity in the test section is 6 m/s. In combination with the low viscosity of water, which can be further controlled by heating, Reynolds-numbers of up to 2.5 x 10⁶ are possible.
The hypersonic Ludwieg tube HLB [1] generates an intermittent Ma=6 air flow for Unit Reynolds numbers up to 20 million. The test section size allows to test models of about 0.2m length. Instrumentation includes Schlieren, infrared thermography, and pressure gauges.
The ice and multi-phase wind tunnel Braunschweig (Braunschweig Icing Wind Tunnel BIWT) is a Göttingen type of wind tunnel with a test section cross-section of 0.5m x 0.5m. The maximum speed is 40m/s, the duct temperature can be regulated between -20°C and 30°C. The wind tunnel has a spray system for injecting water droplets, as well as a system for introducing naturally growing ice crystals for freezing experiments with supercooled water droplets, ice crystals and mixed phase conditions.
The low noise low-speed wind tunnel Braunschweig (LNB) is an atmospheric Eiffel-type wind tunnel with a modular test section. The test section with a cross-section of 0.4 m x 0.6 features optimum optical access and low turbulence levels with flow velocities of up to 19 m/s.