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- W189561232 abstract "Domaine : Mathematiques appliquees, calcul et simulationEquipes-Projets OpaleRapport de recherche n ° 7684 July 2011 23 pagesAbstract: Wing design in aerodynamics requires the de nition of global ge-ometrical characteristics, such as span, root/tip length ratio, angle of attack,twist angle, sweep angle, etc, as well as local geometrical features that deter-mine the wing section. The objective of this study is to propose an e cientalgorithm to achieve the optimization of both global and local shape parame-ters. We consider as testcase the drag minimization, under lift constraint, of thewing shape of a business aircraft in transonic regime, the ow being modeledby the compressible Euler equations.We show that a straightforward optimization of all parameters fails, due to mul-timodality of the optimization problem. Then, some alternative strategies areproposed. Among them, the use of virtual Nash games yields the best results,in terms of cost function value obtained as well as computational e ciency.Key-words: Aerodynamics, design, optimization, Nash games" @default.
- W189561232 created "2016-06-24" @default.
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- W189561232 date "2011-07-01" @default.
- W189561232 modified "2023-09-25" @default.
- W189561232 title "Coupling Local and Global Shape Optimization in Aerodynamic Design" @default.
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