Audi AG | Ingolstadt, Germany

Aeroacoustic wind tunnel

Project facts

Year

1995

Duration

7 years

Competences

Overall planning

Project scope:

  • Office building
  • Aero-acoustic wind tunnel
  • Preparation zone with workshops
  • Thermal wind tunnel

Technical data:

  • Nozzle size: 11m²
  • Nozzle contraction: 5.5:1
  • Length of test section: 9-10 m (movable collector)

Power:

  • Max. speed: 300 km/h
  • Fan capacity: 2.6 MW
  • Degree of turbulence: < 0,3

Acoustic data:

  • Sound pressure level in the measuring section at 160 km/h: 60 dB(A)
  • Lower limit frequency of the plenum: 63 Hz
  • Special features: anti-noise system

Scales:

  • For vehicles, accuracy: 0,5 N
  • For models, accuracy: 0.3 N
  • Integrated lifting platform, max. height: 1,800 mm

Ground simulation:

  • Belt with the dimensions: 5,500 mm x 1,000 mm
  • Belt speed: 235 km/h
  • Wheel drive units integrated in weighing measurement

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