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DLR Contributions to Code Validation Activities within the European High Lift Project EUROLIFT

Rudnik, R. and Heinrich, R. and Eisfeld, B. and Schwarz, T. (2004) DLR Contributions to Code Validation Activities within the European High Lift Project EUROLIFT. In: New Results in Numerical and Experimental Fluid Dynamics IV, 87, pp. 42-49. 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

The contribution of DLR to the numerical flow simulation activities "assessment and improvement of CFD tools" of the European high lift project EUROLIFT is outlined. For the code assessment the DLR capabilities with respect to block-structured and Chimera grid generation for 2D and 3D high lift configurations are demonstrated, as well as to generate flow adapted hybrid unstructured grids for a 3D configuration. The corresponding results of 3D Navier-Stokes computations of aircraft configurations of different complexity show a good agreement of the DLR block-structured FLOWer code and the unstructured TAU code in comparison to experimental wind tunnel data up to maximum lift. Improvements of accuracy and efficiency in Navier-Stokes solvers are demonstrated by implementation of an advanced upwind discretization scheme and low speed preconditioning in the TAU code. The Chimera technique is used to evaluate the influence of the outer grid extension on the solution accuracy, and to improve the grid resolution in critical areas of complex 3D aircraft high lift configurations.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:DLR Contributions to Code Validation Activities within the European High Lift Project EUROLIFT
Authors:
AuthorsInstitution or Email of Authors
Rudnik, R.UNSPECIFIED
Heinrich, R.UNSPECIFIED
Eisfeld, B.UNSPECIFIED
Schwarz, T.UNSPECIFIED
Date:2004
Journal or Publication Title:New Results in Numerical and Experimental Fluid Dynamics IV
Volume:87
Page Range:pp. 42-49
Editors:
EditorsEmail
Breitsamter, C.UNSPECIFIED
Laschka, B.UNSPECIFIED
Heinemann, H.-J. Hilbig, R., UNSPECIFIED
Publisher:Springer Verlag , Berlin, Heidelberg, New York
ISBN:3-540-20258-7
Status:Published
Keywords:High Lift, Code Validation, FLOWer, TAU, EUROLIFT
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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