Windtunnel Measurements of Aerodynamic Noise Sources of Full Scale Motor Cars
Grosche, F.-R. and Denecke, H. and Schneider, G.R. and Borgwardt, R. and Hack, A. (1996) Windtunnel Measurements of Aerodynamic Noise Sources of Full Scale Motor Cars. In: Fourth International Congress on Sound and Vibration, Congress-Proceedings St. Petersburg, Russia, June 24-27, 1996.
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Tests in two large windtunnels designed for investigations on car aerodynamics have been carried out to determine the dominant sources of wind noise of full scale automobiles by means of the acoustic mirror telescope. The principle and characteristic features of this device are discribed. Measurements of the acoustic source distributions along the sides of the cars demonstrate the potential of the acoustic mirror system to identify dominant sources of aerodynamic noise, to measure the distribution of noise source intensity and to investigate the effect of modifications to reduce the noise radiation. The latter feature is particularly important if there are several noise sources of similar intensity.
|Document Type:||Conference or Workshop Item (Paper)|
|Additional Information:||LIDO-Berichtsjahr=1996, pages=8,|
|Title:||Windtunnel Measurements of Aerodynamic Noise Sources of Full Scale Motor Cars|
|Journal or Publication Title:||Fourth International Congress on Sound and Vibration, Congress-Proceedings St. Petersburg, Russia, June 24-27, 1996|
|Keywords:||Aerodynamic Noise Sources, Windnoise, Sound Source Location, Car Noise, Windtunnel Acoustic Mirrortelescope|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||L TG - Querschnittstechnologien|
|DLR - Research theme (Project):||UNSPECIFIED|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:08|
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