The Audi Aeroacoustic Wind Tunnel: Final Design and First Operational Experience

2000-01-0868

03/06/2000

Event
SAE 2000 World Congress
Authors Abstract
Content
Audi's new full scale aeroacoustic wind tunnel is under full operation now. The new facility is designed for full scale automotive testing of aerodynamics and aeroacoustics for vehicles up to 3 m2 frontal area at wind speeds up to 300 kph. The highlights are the unique ground simulation system with boundary layer suction and a 5-belt-system, and the extremely low background noise of only 60 dB(A) at 160 kph. First the background of the project is illustrated and the need for the special features of the tunnel is deduced form the industrial requirements. Then an overview of the facility design is given with a detailed description of the key technical components. The calibration of the self-correcting test section will be discussed and the physical background for it will be examined more closely. For the calibrated wind tunnel the results of two correlation tests including open jet as well as closed wall wind tunnels show a reasonable conformity. Finally the excellent aeroacoustic qualities are highlighted and future improvements of the test equipment are put forward.
Meta TagsDetails
DOI
https://doi.org/10.4271/2000-01-0868
Pages
18
Citation
Wickern, G., and Lindener, N., "The Audi Aeroacoustic Wind Tunnel: Final Design and First Operational Experience," SAE Technical Paper 2000-01-0868, 2000, https://doi.org/10.4271/2000-01-0868.
Additional Details
Publisher
Published
Mar 6, 2000
Product Code
2000-01-0868
Content Type
Technical Paper
Language
English