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The Aeroacoustic Source Mechanisms of Subsonic-tip-speed Propellers

Dobrzynski, W. (1998) The Aeroacoustic Source Mechanisms of Subsonic-tip-speed Propellers. Invited Lecture, Haifa (isr), 31.08.1998.

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Abstract

This basic lecture on propeller noise summarizes the fundamental noise generating mechanisms for subsonic tip speed propellers. Based on that the effects on noise of different geometrical and operational parameters are presented. Realistic propeller installations often cause excessive noise to be generated. This may be due to oblique or disturbed inflow conditions and non-uniform rotational speed. Related noise characteristics and governing parameters are discussed. Flyover noise measurement and -analysis techniques are described and examples of typical test results are provided.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1999,
Title:The Aeroacoustic Source Mechanisms of Subsonic-tip-speed Propellers
Authors:
AuthorsInstitution or Email of Authors
Dobrzynski, W.UNSPECIFIED
Date:1998
Status:Published
Keywords:Propeller noise
Event Title:Invited Lecture, Haifa (isr), 31.08.1998
Organizer:Israel Institute of Technology
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
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: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:02

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