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Applications of a discrete viscous adjoint method for aerodynamic shape optimisation of 3D configurations

Brezillon, Joel and Dwight, Richard P. (2011) Applications of a discrete viscous adjoint method for aerodynamic shape optimisation of 3D configurations. CEAS Aeronautical Journal. DOI: 10.1007/s13272-011-0038-0.

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Abstract

Within the next few years, numerical shape optimisation 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 optimisation problems, and the adjoint approach—which allows fast and accurate evaluations of the gradients with respect to the design parameters—is proved to be very efficient to eliminate the shock on aircraft wing in transonic flow. However, few applications were presented so far considering other design problems involving 3D viscous flows. This paper describes how the adjoint approach can also help the designer to efficiently reduce the flow separation onset at wing–fuselage intersection and to optimise the slat and flap positions of a 3D high-lift configuration. On all these cases, the optimisations were successfully performed within a limited number of flow evaluations, emphasising the benefit of the adjoint approach in aircraft shape design.

Document Type:Article
Title:Applications of a discrete viscous adjoint method for aerodynamic shape optimisation of 3D configurations
Authors:
AuthorsInstitution or Email of Authors
Brezillon, JoelJoel.Brezillon@dlr.de
Dwight, Richard P.UNSPECIFIED
Date:25 October 2011
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
In SCOPUS:No
In ISI Web of Science:No
DOI:10.1007/s13272-011-0038-0
Status:Published
Keywords:Optimisation, Adjoint method, Aerodynamics, Wing design, High lift
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 - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Joel Brezillon
Deposited On:07 Dec 2011 15:53
Last Modified:26 Mar 2013 13:34

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