Result: Effect of approximations of the discrete adjoint on gradient-based optimization
Title:
Effect of approximations of the discrete adjoint on gradient-based optimization
Authors:
Source:
AIAA journal. 44(12):3022-3031
Publisher Information:
Reston, VA: American Institute of Aeronautics and Astronautics, 2006.
Publication Year:
2006
Physical Description:
print, 26 ref
Original Material:
INIST-CNRS
Subject Terms:
Aeronautics astronautics, Aéronautique, astronautique, Mechanics acoustics, Mécanique et acoustique, Transportation, Transports, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Mécanique des fluides, Fluid dynamics, Méthodes de calcul en mécanique des fluides, Computational methods in fluid dynamics, Mécanique des fluides appliquée, Applied fluid mechanics, Aérodynamique, Aerodynamics, Distribution pression, Pressure distribution, Distribución presión, Ecoulement transsonique, Transonic flow, Equation Navier Stokes, Navier-Stokes equations, Forme géométrique, Geometrical shape, Forma geométrica, Génération maille, Mesh generation, Modélisation, Modelling, Mécanique fluide numérique, Computational fluid dynamics, Méthode adjoint, Adjoint method, Método adjunto, Méthode volume fini, Finite volume methods, Optimisation, Optimization, Profil aérodynamique, Airfoils, Simulation numérique, Digital simulation, Structure turbulence, Turbulence structure, Estructura turbulencia, Traînée, Drag
Document Type:
Conference
Conference Paper
File Description:
text
Language:
English
Author Affiliations:
DLR, German Aerospace Research Center, 38108 Braunschweig, Germany
ISSN:
0001-1452
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: fluid mechanics
Accession Number:
edscal.18367826
Database:
PASCAL Archive
Further Information
An exact discrete adjoint of an unstructured finite-volume solver for the Reynolds-averaged Navier-Stokes equations has been developed. The adjoint is exact in the sense of being based on the full linearization of all terms in the solver, including all turbulence model contributions. From this starting point various approximations to the adjoint are derived with the intention of simplifying the development and memory requirements of the method; considered are many approximations already seen in the literature. The effect of these approximations on the accuracy of the resulting design gradients, and the convergence and final solution of optimizations is studied, as it applies to a two-dimensional high-lift configuration.