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CFD Analysis on Different Wing-tip Devices of Commercial Aircrafts

Barakat, S. and Elsholz, E. (2005) CFD Analysis on Different Wing-tip Devices of Commercial Aircrafts. CEAS/KATnet Conference 2005, 20-22 June, Bremen.

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Abstract

The paper discusses CFD solutions on 3 different wing-tip devices (clean tip referred to as Kuechemann-tip, tip-fence and large winglet). Work was performed within the framework of the EU-project “M-DAW” (Modeling and Design of Advanced Wing tip devices). Solutions on the different tip-devices will be compared with experiments at different Mach- and Reynolds numbers on - a high-speed wing/body configuration (no engines) in the ETW wind tunnel (M=0.85, Remac = 54 millions) and - two different low-speed configurations (cruise and take-off, with engines installed) in the DNW-KKK wind tunnel (M=0.2, Re-mac = 7 to 9 millions). Most solutions appear in fair agreement with the experimental data. However, specific model deformations in ETW have to be accounted for in order to improve the high-speed results. Afterwards the methods/tools used here may be taken as valid for final assessments of brand-new wing-tip device developments within the M-DAW project.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:CFD Analysis on Different Wing-tip Devices of Commercial Aircrafts
Authors:
AuthorsInstitution or Email of Authors
Barakat, S.UNSPECIFIED
Elsholz, E.UNSPECIFIED
Date:2005
Status:Published
Keywords:different wing-tip devices, CFD simulation
Event Title:CEAS/KATnet Conference 2005, 20-22 June, Bremen
Organizer:KATnet
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: elib DLR-Beauftragter
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:50

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