Comparative Investigation of Predictive Capability of Aeroacoustic Methods for Single Rotation Propellers
Canard-Caruana, S.* and Cloarec, P.** and Donnelly, R.P.***, Lohmann, D., and Meijer, S.****, Schulter, J.B.H.M.*****, Sarin,S.L.******, (1993) Comparative Investigation of Predictive Capability of Aeroacoustic Methods for Single Rotation Propellers. In: GARTEUR Gruppe AD (AG12).
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Sound-pressure field of a propeller consists mainly of (i) thickness noise caused by volume displacement of the air by the blades and thus is defined by the blade geometry and (ii) loading noise due to forces that the blades impose on the air and thus determined by blade loading which may be steady or unsteady. However, the possible contribution of an additional noise source due to non-linear effects (iii) needs to be considered in case of high tip speeds. Broadband noise is not included. This report deals with a comparative study of propeller acoustic codes developed by various GARTEUR partners (AS, DAP, DLR, FFA, NLR and ONERA) and their comparison with experimental results. Two propellers are chosen for this study. One propeller (HARTZELL) represents the conventional general aviation type while the second (R3/1) is an unswept research propeller with enhanced transonic effects at high speeds compared to swept wing.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Comparative Investigation of Predictive Capability of Aeroacoustic Methods for Single Rotation Propellers|
|Journal or Publication Title:||GARTEUR Gruppe AD (AG12)|
|Keywords:||Propeller Noise Prediction, Acoustic Analogy, Aeroacoustics|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||L TT - Triebwerkstechnologien|
|DLR - Research theme (Project):||L - Quiet Air Traffic (old)|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:06|
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