The large low-speed facility (LLF) in Marknesse is an industrial wind tunnel for the low-speed domain.
Type of wind tunnel
| Closed circuit, atmospheric, continuous low-speed wind tunnel with one closed wall and one configurable (slotted) wall test section and an open jet. Click on the picture for an interactive view. |  |
Main Features
Closed wall test sections
Fixed section
- 9.5 m x 9.5 m: 0 < V < 62 m/s
Configurable section with the following two configurations
- 8 m x 6 m: 0 < V < 116 m/s
- 6 m x 6 m: 0 < V < 152 m/s
Model support
- Remotely controlled sting support system with four degrees of freedom for models with internal balance
- External six-component balance
- Floor-based model support system for open jet testing with three degrees of freedom
Auxiliary systems
- Compressed air supply with a capacity of 5 kg/s continuously at 80 bar
- Vacuum system
- Moving belt ground plane for ground simulation
- Microphone traversing system
- Microphone wall arrays
Typical tests
- Configuration studies, database creation (civil and military transport aircraft, fighters, helicopters, spacecraft, cars and trucks)
- Engine integration studies with air-powered simulators
- Turbofan-powered aircraft by means of TPS
- Propeller-driven aircraft
- Air exhaust simulation with compressed air
- Air intake surveys for fighters and helicopters
- Aeroacoustic and performance testing on rotorcraft models
- Aeroacoustic testing on full-scale aircraft components (landing gears, wings)
- Aeroacoustic investigations on scaled turbofans
- Full-scale cars and trucks (drag and aeroacoustics)
Location
ADDRESS
Voorsterweg 31
8316 PR Marknesse
The Netherlands
Phone
+31 527 24 8520
E-mail
info@dnw.aero