HHC Aeroacoustic Rotor Tests in the German-Dutch Wind Tunnel: Improving Physical Understanding and Prediction Codes
Kube, R. and Splettstößer, W.R. and Wagner, W. and Seelhorst, U. and Yu, Y.H. and Tung, C. and Beaumier, P. and Prieur, J. and Rahier, G. and Spiegel, P. and Boutier, A. and Brooks, T.F. and Burley, C.L. and Boyd, D.D. and Mercker, E. and Pengel, K. (1996) HHC Aeroacoustic Rotor Tests in the German-Dutch Wind Tunnel: Improving Physical Understanding and Prediction Codes. American Helicopter Society Meeting 1996.
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Within an international research program jointly conducted by US Army's Aeroflightdynamics Directorate (AFDD), NASA Langley, DNW, ONERA and DLR, the effects of a higher harmonic blade pitch angle on the rotor noise and vibrations were internsively studied. The program, denoted with Higher Harmonic Control Aeroacoustic Rotor Tests (HART) comprised both theoretical and experimental activities,the latter ones being represented by a comprehensive wind tunnel test campaign. Besides aeroacoustic measurements it comprised flow visualization tests and flow field measurements which were applied along with optical methods to determine the blade deflections. The measurements were preceded by extensive simulations performed with the analytical models of the individual participating organizations. Within these simulating different models for the rotor downwash, the blade aerodynamics and the rotor dynamics were used, leading to a very comprehensive theoretical data base.
|Document Type:||Conference or Workshop Item (Speech)|
|Title:||HHC Aeroacoustic Rotor Tests in the German-Dutch Wind Tunnel: Improving Physical Understanding and Prediction Codes|
|Event Title:||American Helicopter Society Meeting 1996|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L DT - Drehflüglertechnologien|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institute of Flight Systems > Institut für Flugmechanik|
Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Institute of Aeroelasticity
Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Theoretische Strömungsmechanik
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||02 Apr 2006|
|Last Modified:||27 Apr 2009 10:08|
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