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Experimental Results of the European HELINOISE Aeroaccoustic Rotor Test in the DNW

Splettstoesser, W. (1994) Experimental Results of the European HELINOISE Aeroaccoustic Rotor Test in the DNW. Proceedings, AHS 50th Annual Forum and Technology Display, Washington , DC, USA, 11.-13. Mai 1994.

Full text not available from this repository.

Abstract

In a major cooperative research program between 8 European partners, a 40%-geometrically scaled and highly instrumented model of the ECD (formerly MBB) BO 105 helicopter main rotor was tested in the open jetanechoic test section of the German-Dutch Wind Tunnel, DNW, in the Netherlands. A comprehensive set of simultanious accoustic and aerodynamic bladde surface pressure data as well as blade dynamic and performance data were measured for the standard rotor with rectangular blade tips. The primary objective of this experimental study was to generate an extensive airload and acoustic database and to examine the relation between the blade pressure characteristics and the acoustic radiation. Initial quantitativeinformation on blade-tipvortex trajector ies and blade positions during blade-vortex interactions was obtained. The blade pressure instrumentation, the experimental equipment used, the test procedures applied, and the scope of the test matrix conducted are briefly explained.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1994, pages=15,
Title:Experimental Results of the European HELINOISE Aeroaccoustic Rotor Test in the DNW
Authors:
AuthorsInstitution or Email of Authors
Splettstoesser, W.UNSPECIFIED
Date:1994
Status:Published
Keywords:Helicopter Noise, Aerodynamic Blade Surface Pressures, Rotor Noise, W ind Tunnel Tests, Flow Visualization
Event Title:Proceedings, AHS 50th Annual Forum and Technology Display, Washington , DC, USA, 11.-13. Mai 1994
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L DT - Drehflüglertechnologien
DLR - Research theme (Project):L - The Quiet and Comfortable Rotorcraft
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 10:05

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