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Aerodynamic Shape Optimization Using the Discrete Adjoint of the Navier-Stokes Equations: Applications Toward Complex 3D Configutations

Brezillon, Joël and Dwight, Richard P. (2009) Aerodynamic Shape Optimization Using the Discrete Adjoint of the Navier-Stokes Equations: Applications Toward Complex 3D Configutations. KATnet II Conference on Key Aerodynamic Technologies, 12-14 May 2009, Bremen.

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Abstract

Within the next few years, numerical shape optimization based on high fidelity methods is likely to play a strategic role in future aircraft design. In this context, suitable tools have to be developed for solving aerodynamic shape optimization problems, and the adjoint approach - which allows fast and accurate evaluations of the gradients with respect to the design parameters - is seen as a promising strategy. After describing the theory of the viscous discrete adjoint method and its implementation within the unstructured RANS solver TAU, this paper describes application for aerodynamic shape optimization. First wing and fuselage designs of the DLR-F6 wing-body aircraft are presented. A step forward in complexity is considered by applying the adjoint for flap and slat optimal settings of the DLR-F11 model, a wing-body aircraft in high-lift configuration. On all cases presented, optimization were successfully performed within a limited number of flows evaluations.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Aerodynamic Shape Optimization Using the Discrete Adjoint of the Navier-Stokes Equations: Applications Toward Complex 3D Configutations
Authors:
AuthorsInstitution or Email of Authors
Brezillon, Joëljoel.brezillon@dlr.de
Dwight, Richard P.r.p.dwight@tudelft.nl
Date:12 May 2009
Keywords:aerodynamic, optimisation, adjoint approach, mesh strategy, high-lift
Event Title:KATnet II Conference on Key Aerodynamic Technologies
Event Location:Bremen
Event Type:international Conference
Event Dates:12-14 May 2009
HGF - Research field:Aeronautics, Space and Transport
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: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Joel Brezillon
Deposited On:15 Dec 2009 13:30
Last Modified:12 Dec 2013 20:48

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