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Helicopter Fuselage Drag Prediction: State of the art in Europe

Gleize, V. and Costes, M. and von Geyr, H. and Kroll, N. and Renzoni, P. and Amato, M. and Kokkalis, A. and Mottura, L. and Serr, C. and Larrey, E. and Filippone, A. and Fischer, A. and Amato, M. (2001) Helicopter Fuselage Drag Prediction: State of the art in Europe. 39th AIAA Aerospace Sciences Meeting & Exhibit, Reno (usa), 08.-11.01.2001.

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Abstract

This paper presents the final results obtained during the computational task of the Brite-Euram HELIFUSE programme. The calculations were conducted by three National Research Centers (CIRA, DLR and ONERA), three Helicopter Manufacturers (Agusta, Eurocopter and GKN-Westland), one Software Company (SIMULOG) and two University Laboratories (DTU and IAG). The test cases considered concern two simplified geometries of the DGV fuselage which had been tested in the course of the project, aiming to analyze Reynolds number and geometry effects on the fuselage flowfield and loads. The results show the progress completed in Reynolds Averaged Navier-Stokes simulations during this cooperation. They prove that RANS methods can accurately compute the flowfield and the loads around a fuselage provided that sufficiently fine grids are used. Low speed preconditioning techniques which have been applied by some of the partners are necessary for improving the accuracy on pressure drag at low Mach number conditions. For the configurations considered where limited separation occurs the turbulence model has a very weak influence on the solution. Finally it is shown that current RANS methods can accurately reproduce strut interference effects which appear in the wind tunnel tests.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001, monograph_id=AIAA-2001-0999,
Title:Helicopter Fuselage Drag Prediction: State of the art in Europe
Authors:
AuthorsInstitution or Email of Authors
Gleize, V.ONERA
Costes, M.ONERA
von Geyr, H.UNSPECIFIED
Kroll, N.UNSPECIFIED
Renzoni, P.CIRA
Amato, M.UNSPECIFIED
Kokkalis, A.GKNWHL
Mottura, L.Agusta
Serr, C.Eurocopter
Larrey, E.Simulog
Filippone, A.DTU
Fischer, A.IAG
Amato, M.UNSPECIFIED
Date:2001
Status:Published
Event Title:39th AIAA Aerospace Sciences Meeting & Exhibit, Reno (usa), 08.-11.01.2001
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: Claudia Grant
Deposited On:08 Dec 2005
Last Modified:14 Jan 2010 20:20

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