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Hand-coded Adjoints in Aerodynamic Applications

Gauger, N. (2001) Hand-coded Adjoints in Aerodynamic Applications. Minisymposium 'Automatic Differentiation and Partial Differential Equations' at the SIAM Annual Meeting 2001, San Diego (USA), 9.-13.7.2001.

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Abstract

Numerical shape optimization will play a stratigic role for future aircraft design. It offers the possibility of designing or improving aircraft components with respect to a pre-specified figure of merit subject to geometrical and physical constraints. However, the extremely high computational expense of straightforward methodologies currently in use prohibits the application of numerical optimization for industry relevant problems. Optimization methods based on the calculation of the derivatives of the cost function with respect to the design variables suffer from the high computational costs if many design variables are used. However, these gradients can be efficiently obtained by solution of the continuous adjoint flow equations. DLR is actively developing and validating hand-coded adjoint solvers based upon the work of A. Jameson.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Hand-coded Adjoints in Aerodynamic Applications
Authors:
AuthorsInstitution or Email of Authors
Gauger, N.UNSPECIFIED
Date:2001
Status:Published
Keywords:Control theory, continuous adjoint flow equations, hand-coded adjoints, aerodynamic optimization
Event Title:Minisymposium 'Automatic Differentiation and Partial Differential Equations' at the SIAM Annual Meeting 2001, San Diego (USA), 9.-13.7.2001
Organizer:SIAM
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
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 18:49

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