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Numerical calculations of high lift flow using structured and unstructured methods

Baily, R. and Longo, J.M.A. and Radespiel, R. and Ronzheimer, A. and Demir, A. and Kroll, N. and Rossow, C.-C. (1992) Numerical calculations of high lift flow using structured and unstructured methods. In: High-Lift Systems Aerodynamics, CP-515, 14-1-14-13. 71st Fluid Dynamics Panel Meeting and Symposium in High-Lift System Aerodynamics, Banff, Alberta (can), 05.-08.10.1992.

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Abstract

At the DLR Institute for Design Aerodynamics current research in the area of high lift aerodynamics is directed towards the development of a computational analysis capability for high lift systems. The Navier-Stokes equations are solved with a multigrid method based on central spatial differencing and Runge-Kutta time stepping. Two particular problems are addressed in this paper. The first concerns the calculation of maximum lift or a single airfoil and a clean wing configuration. The accuracy of the basic structured flow solver is investigated by comparing the results with experimental data for two test problems and several flow conditions. Emphasis is placed on the sensitivity of the computed solution associated with turbulence modelling. The second aspect dealt with in the present paper concerns the extension of the numerical method to multi-element airfoils. Both, the block-structured and the unstructured grid approach are investigated in order to explore their specific merits and limitations. Detailed comparisons of the structured and unstructured approach are presented for low Reynolds number laminar viscous flows around a single airfoil, and for the inviscid flow around a multi-element airfoil.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Numerical calculations of high lift flow using structured and unstructured methods
Authors:
AuthorsInstitution or Email of Authors
Baily, R.UNSPECIFIED
Longo, J.M.A.UNSPECIFIED
Radespiel, R.UNSPECIFIED
Ronzheimer, A.UNSPECIFIED
Demir, A.UNSPECIFIED
Kroll, N.UNSPECIFIED
Rossow, C.-C.UNSPECIFIED
Date:1992
Journal or Publication Title:High-Lift Systems Aerodynamics
Volume:CP-515
Page Range:14-1-14-13
Series Name:AGARD
Status:Published
Keywords:Aerodynamics, CFD, Grid Generation, Airfoils, Wings
Event Title:71st Fluid Dynamics Panel Meeting and Symposium in High-Lift System Aerodynamics, Banff, Alberta (can), 05.-08.10.1992
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Space
DLR - Program:L TG - Querschnittstechnologien
DLR - Research theme (Project):L - Systems & Cabin
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:21

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