The ITFD's flow laboratory is equipped with several wind tunnels and test benches as well as modern measurement technology. In addition to a thermal wind tunnel, which can be operated open or closed, there is also a transparent suction wind tunnel and a free-blowing wind tunnel.
Thermal wind tunnel
| Characteristics | |
| Max. mass flow | 3.5 kg/s |
| Max. pressure ratio | 1,6 |
| Temperature range | 20 °C to 120 °C |
| Turbulence intensity | 0.2 % to 12 % |
| Application examples | Heat transfer measurements, research on transitional boundary layers, turbulence structure, turbulence spot kinematics, riblets |
| Measurement technology | e.g. LDA, CTA, hot film, pneumatic probes, IR thermography, heat transfer |
Transparent suction wind tunnel
| Characteristics | |
| Max. mass flow | 0.25 kg/s |
| Max. pressure ratio | 0,5 |
| Temperature range | Ambient temperature |
| Turbulence intensity | 0.1 % to 4 % |
| Width of flow cross-section | 500 mm |
| Height of flow cross-section | 5 mm to 100 mm |
| Application examples | Development of flow measurement technology, acquisition of validation data for the DNS, generation of a trained gap flow |
| Measurement technology | e.g. LDA, CTA, hot film, pneumatic probes, IR thermography |
Free-blowing wind tunnel
| Characteristics | |
| Max. mass flow | 6 kg/s |
| Temperature range | Ambient temperature |
| Turbulence intensity | approx. 1 % |
| Jet diameter | 500 mm |
| Application examples | Determination of lift, drag and moment coefficients on aerofoil profiles and rotor blades |
| Measurement technology | Pressure distribution, force and torque sensors |