RI-177
Description
Simulates turbofan engine intake and exhaust ducts to study the behaviour of sound absorbing materials under grazing flow conditions.
Main technical characteristics
The NLR flow duct facility, NLR-FDF, simulates turbofan engine intake and exhaust ducts to study the behaviour of sound absorbing materials under grazing flow conditions. It comprises two reverberation rooms connected through a flow duct. The volume of each reverberation room is 50 m3, assuring a diffuse sound field at frequencies above 350Hz.
Operational Capacity
Reynolds Number:
Mach / Maximum Velocity: 0.8
Maximum Temperature & Preassure:
Duct Diameter / Test Section Dimensions: 0.045 m2 (0.30 x 0.15 m2)
Contact Information
Barbara Ohlenforst
Marknesse (Netherlands)