Surrogate Models for Spacecraft Aerodynamic Problems

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Mikhail Belyaev, Evgeny Burnaev, Ermek Kapushev, Stephane Alestra, Marc Dormieux, Antoine Cavailles, Davy Chaillot and Eugenio Ferreira


11th World Congress on Computational Mechanics (WCCM XI)


Airbus Defence and Space, in the frame of the development of various spacecraft vehicles, is producing aerodynamic models. Different kinds of data are used to build these models: - Experimental results derived from WTT campaigns, with a high level of con dence. - Numerical data resulting from CFD simulations, with a lower level of con dence, which depends also on the used numerical method (Euler / RANS, flow regime, etc.) CFD computations and even more WT campaigns are very costly and it is sometimes not conceivable to perform all flight con gurations (surfaces, directions, e.g.) on the whole lead to inconsistent results with a classical approach. Furthermore available data can constitute anisotropic grids which lead to severely harden the interextrapolation process. An inter-extrapolation process is then necessary to build a complete aerodynamic model.

Keywords: Design of Experiments, Approximation, Data Fusion, , Aerospace, Aerodynamics


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