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Multi-fidelity efficient global optimization : Methodology and application to airfoil shape design

Meliani, Mostafa and Bartoli, Nathalie and Lefebvre, Thierry and Bouhlel, Mohamed-Amine and Martins, Joaquim R.R. A. and Morlier, Joseph Multi-fidelity efficient global optimization : Methodology and application to airfoil shape design. (2019) In: AIAA Aviation 2019 Forum, 21 June 2019 - 17 June 2019 (Dallas, United States).

(Document in English)

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Official URL: https://doi.org/10.2514/6.2019-3236


Predictions and design engineering decisions can be made using a variety of informa- tion sources that range from experimental data to computer models. These information sources could consist of different mathematical formulations, different grid resolutions, dif- ferent physics, or different modeling assumptions that simplify the problem. This leads to information sources with varying degrees of fidelity, each with an associated accuracy and querying cost. In this paper, we propose a novel and flexible way to use multi-fidelity informa- tion sources optimally in the context of airfoil shape optimization using both Xfoil and ADflow. The new developments are based on Bayesian optimization and kriging metamodeling and allow the aerodynamic optimization to be sped up. In a constrained optimization example with 15-design variables problem, the proposed approach reduces the total cost by a factor of two compared to a single Bayesian based fidelity optimization and by a factor of 1.5 compared to sequential quadratic programming.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02233293
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > University of Michigan - U-M (USA)
Laboratory name:
Deposited On:01 Aug 2019 08:31

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