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Numerical Investigation of the Flow Around Different Slat Tracks on a Swept High Lift Wing Segment

Rudnik, R. and Ronzheimer, A. (2004) Numerical Investigation of the Flow Around Different Slat Tracks on a Swept High Lift Wing Segment. In: New Results in Numerical and Experimental Fluid Mechanics IV, 87, pp. 58-65. Springer Verlag, Berlin Heidelberg New York. 13th DGLR STAB Symposium, München (de), 12.-14.11.2002. ISBN 3-540-20258-7.

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Abstract

A numerical investigation of a high lift segment using an unstructured RANS method shows, that a slat track can have a significant influence on the overall aerodynamic properties. Two track types are considered, one which is representative of a wind tunnel model, and a second one derived from an aircraft track. The major differences are the larger cross-section area of the model track, and the intersection with the fixed wing. The high lift devices are positioned in a landing setting. The onflow conditions refer to wind tunnel conditions. Periodic lateral boundary conditions are applied. Compared to a reference high lift wing segment without track, a 10% increase in lift and a 20% increase in drag is being computed for the model track. For the aircraft track only a minor lift change is found, but also a 20% drag increase. Based on the outcome of the present investigations, the major impact of the lift is caused by the downstream shift of the stagnation line in the vicinity of the junction of the model track and the fixed wing.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Numerical Investigation of the Flow Around Different Slat Tracks on a Swept High Lift Wing Segment
Authors:
AuthorsInstitution or Email of Authors
Rudnik, R.UNSPECIFIED
Ronzheimer, A.UNSPECIFIED
Date:2004
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics IV
Volume:87
Page Range:pp. 58-65
Editors:
EditorsEmail
Breitsamter, C.UNSPECIFIED
Laschka, B.UNSPECIFIED
Heinemann, H.-J. Hilbig, R., UNSPECIFIED
Publisher:Springer Verlag, Berlin Heidelberg New York
Series Name:Notes On Numerical Fluid Mechanics And Multidisciplinary Design
ISBN:3-540-20258-7
Status:Published
Keywords:RANS, slat-track, high lift
Event Title:13th DGLR STAB Symposium, München (de), 12.-14.11.2002
Organizer:DGLR
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: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:46

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