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GENERATION OF AN ADVANCED HELICOPTER EXPERIMENTAL AERODYNAMIC DATABASE

Raffel, Markus and de Gegorio, Fabrizio and Sheng, W. and Gibertini, G. and Seraudie, A. and de Groot, Klaus and van der Wall, Berend G. (2009) GENERATION OF AN ADVANCED HELICOPTER EXPERIMENTAL AERODYNAMIC DATABASE. 35th European Rotorcraft Forum, 2009-09-22 - 2009-09-25, Hamburg (Germany). ISBN 978-3-932182-65-0. ISSN 0178-6326

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Abstract

The GOAHEAD-consortium was created in the frame of an EU-project in order to create an experimental database for the validation of 3D-CFD and comprehensive aeromechanics methods for the prediction of unsteady viscous flows including rotor dynamics for complete helicopter configurations, i.e. main rotor – fuselage – tail rotor configurations with emphasis on viscous phenomena like flow separation and transition from laminar to turbulent flow. The wind tunnel experiments have been performed during two weeks in the DNW-LLF on a Mach-scaled model of a modern transport helicopter consisting of the main rotor, the fuselage, control surfaces and the tail rotor. Therefore, a closed test section has been used. The measurement comprised global forces of the main rotor and the fuselage, steady and unsteady pressures, transition positions, stream lines, position of flow separation, velocity profiles at the test section inlet, velocity fields in the model wake, vortex trajectories and elastic deformations of the main and tail rotor blades.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:GENERATION OF AN ADVANCED HELICOPTER EXPERIMENTAL AERODYNAMIC DATABASE
Authors:
AuthorsInstitution or Email of Authors
Raffel, MarkusUNSPECIFIED
de Gegorio, FabrizioCentro Italiano Ricerche Aerospaziali (CIRA), Via Maiorise, 81043 Capua (CE), Italy
Sheng, W.Department of Aerospace Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, Scotland
Gibertini, G.Politecnico di Milano - Dipartimento di Ingegneria Aerospaziale, Via La Masa 34, 20156 Milano, Italy
Seraudie, A.ONERA, Aerodynamics and Energetics Model Department, B.P. 4025 2, av. E. Belin, 31055 Toulouse Cedex 4, France
de Groot, KlausUNSPECIFIED
van der Wall, Berend G.UNSPECIFIED
Date:2009
Refereed publication:No
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:CD-ROM Conference Proceedings
ISSN:0178-6326
ISBN:978-3-932182-65-0
Status:Published
Keywords:PIV, boundary layer, helicopter, laminar-turbulent transition
Event Title:35th European Rotorcraft Forum
Event Location:Hamburg (Germany)
Event Type:international Conference
Event Dates:2009-09-22 - 2009-09-25
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Ilka Micknaus
Deposited On:02 Dec 2009 15:30
Last Modified:06 May 2013 09:53

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