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Comparative Investigation of Predictive Capability of Aeroacoustic Methods for Single Rotation Propellers

Canard-Caruana, D. and Cloarec, P. and Donally, R.P. and Lohmann, D. and Meijer, S. and Schulten, J.B.H.M. (1993) Comparative Investigation of Predictive Capability of Aeroacoustic Methods for Single Rotation Propellers. In: GARTEUR Report TP077 (November 1993)..

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Abstract

The 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 the case of high tip speeds. 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. The present work is restricted only to the dicrete components of propeller noise and no attempt is made to examine the less important broadband component. Two propellers are chosen for this study. One propeller (Hartzell) represents the conventional.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996, pages=93,
Title:Comparative Investigation of Predictive Capability of Aeroacoustic Methods for Single Rotation Propellers
Authors:
AuthorsInstitution or Email of Authors
Canard-Caruana, D.UNSPECIFIED
Cloarec, P.UNSPECIFIED
Donally, R.P.UNSPECIFIED
Lohmann, D.UNSPECIFIED
Meijer, S.UNSPECIFIED
Schulten, J.B.H.M.UNSPECIFIED
Date:1993
Journal or Publication Title:GARTEUR Report TP077 (November 1993).
Status:Published
Keywords:Aeroacoustics, Propeller Noise, Aeroacoustic Methods.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
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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