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Evaluation of CFD methods for transport aircraft high lift systems

Rudnik, R. and Eliasson, P. and Perraud, J. (2005) Evaluation of CFD methods for transport aircraft high lift systems. The Aeronautical Journal, 109 (1092), pp. 53-64.

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Abstract

Major results and findings of the numerical work package of the European high lift programme EUROLIFT are outlined. The main objective of these studies is to validate and test numerical methods for the prediction of high lift flows for transport aircraft configurations. The activities comprise the assessment of current CFD methods for 3D flows, evaluation of means for code improvement, and transition prediction. All aspects are especially devoted to high lift flow problems. A general capability to predict maximum lift on a simplified wing/fuselage high lift configuration is demonstrated by a variety of different numerical approaches. In general, major shortcomings are the reliability and the accurate simulation of large separation areas and the turn-around time to compute 3D lift polars. Advanced turbulence modelling and numerical solver features, such as the preconditioning technique, show a potential to overcome these deficiencies. Promising results with respect to transition prediction were obtained on a swept high lift wing using a database method. The results obtained in the numerical activities represent major ingredients on the way to a consistent numerical approach for the simulation of transport aircraft high lift configurations including all maximum lift determining effects.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2005,
Title:Evaluation of CFD methods for transport aircraft high lift systems
Authors:
AuthorsInstitution or Email of Authors
Rudnik, R.UNSPECIFIED
Eliasson, P.FOI, Swedish Defense Research Agency
Perraud, J.ONERA CERT
Date:2005
Journal or Publication Title:The Aeronautical Journal
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:109
Page Range:pp. 53-64
Status:Published
Keywords:Aerodynamics, high lift, validation
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 - Flight Physics
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 19:52

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