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A Parametric Wind Tunnel Test on Rotorcraft Aerodynamics and Aeroacoustics (HELISHAPE) - Test Procedures and Representative Results

Schultz, K.-J. and Splettstößer, W. and Junker, B. and Wagner, W. and Schöll, E. and Arnaud, G. and Mercker, E. and Pengel, K. and Fertis, D. (1996) A Parametric Wind Tunnel Test on Rotorcraft Aerodynamics and Aeroacoustics (HELISHAPE) - Test Procedures and Representative Results. In: Proc. 22nd European Rotorcraft Forum, Brighton, Großbritanien, 17.-19.9.1996..

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Abstract

In the framework of a major European cooperative research programme on rotorcraft aerodynamics and accoustics (HELISHAPE) a parametric model rotor test was conducted in the open test section of the DNW using the MWM test rig of DLR and a highly instrumentated model of a fully articulated ECF rotor equipped with blades of advanced design and two exchangeable blade tips. One set of balde tips (7A) was of rectangular shape, the other one (7AD1) of swept-back parabolic/anhedral shape. the main objectives of this experimental research were (1) to evaluate noise reduction techniques (conceptionally by variation of rotor speed, dedicated tip shapes and advanced airfoils as well as operationally by identifying low BVI noise decent procedures) and (2) to validate the partners' individual aerodynamic and aeroacoustic codes developed or improved in other tasks of this research programme. A comprehensive set of simultaneous acoustic.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996, pages=15,
Title:A Parametric Wind Tunnel Test on Rotorcraft Aerodynamics and Aeroacoustics (HELISHAPE) - Test Procedures and Representative Results
Authors:
AuthorsInstitution or Email of Authors
Schultz, K.-J.UNSPECIFIED
Splettstößer, W.UNSPECIFIED
Junker, B.UNSPECIFIED
Wagner, W.UNSPECIFIED
Schöll, E.UNSPECIFIED
Arnaud, G.UNSPECIFIED
Mercker, E.UNSPECIFIED
Pengel, K.UNSPECIFIED
Fertis, D.UNSPECIFIED
Date:1996
Journal or Publication Title:Proc. 22nd European Rotorcraft Forum, Brighton, Großbritanien, 17.-19.9.1996.
Series Name:Paper No. 52
Status:Published
Keywords:Helicopter impulsive noise, aeroacoustic rotor tests, blade surface pressures, noise directivity, blade-tip variations, laser light....
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 10:06

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