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A parametric windtunnel 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 Schoell, E. and Mercker, E. and Pengel, K. and Arnaud, G. and Fertis, D. (1997) A parametric windtunnel test on rotorcraft aerodynamics and aeroacoustics (Helishape) - test procedures and representative results. In: The Aeronautical Journa of the Royal Aeronautical Society Vol. 101, No. 1004, pp. 143-154, April 1997.. The Royal Aeronautical Society (RAeS), 4 Hamilton Place, London.

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Abstract

Within the framework of a major European co-operative research project on rotorcraft aerodynamics and acoustics (Helishape), a parametric model rotor test was conducted in the open test section of the DNW using DLR's MWM test rig, and a highly instrumented model of a fully articulated ECF rotor equipped with blades of advanced design with two exchangeable blade tips. One set of blade tips (7A) was rectangular, while the other (7AD1) was a swept-back parabolic-anhedral shape. The objectives of this experimental research were to evaluate noise reduction techniques (conceptionally by variation of rotor speed, dedicated tip shapes and advanced aerofoils, as well as operationally, by identifying low noise, BVI-minimising, decent procedures) and to validate the partners' aerodynamic and aeroacoustic codes. A comprehensive set of simultanous acoustic and aerodynamic blade surface pressure data and blade dynamic and performance data was measured.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1997,
Title:A parametric windtunnel 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
Schoell, E.UNSPECIFIED
Mercker, E.UNSPECIFIED
Pengel, K.UNSPECIFIED
Arnaud, G.UNSPECIFIED
Fertis, D.UNSPECIFIED
Date:1997
Journal or Publication Title:The Aeronautical Journa of the Royal Aeronautical Society Vol. 101, No. 1004, pp. 143-154, April 1997.
Publisher:The Royal Aeronautical Society (RAeS), 4 Hamilton Place, London
Status:Published
Keywords:Helicopter noise, rotorcraft aerodynamics, rotorcraft aeroacoustics, rotor model windtunnel test, blade surface pressures, LLS flow.....
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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