par Tryoen, Julie;Congedo, Pietro Marco;Abgrall, Rémi;Villedieu, Nadège A.C. 
;Magin, Thierry
Référence 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition(51: 2013-01-07), American Institute of Aeronautics and Astronautics Inc
Publication Publié, 2013
;Magin, Thierry Référence 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition(51: 2013-01-07), American Institute of Aeronautics and Astronautics Inc
Publication Publié, 2013
Publication dans des actes
| Résumé : | The paper investigates a new methodology to rebuild freestream conditions for the trajectory of a re-entry vehicle from measurements of stagnation-point pressure and heat flux. Uncertainties due to measurements and model parameters are taken into account and a Bayesian setting is used to solve the associated stochastic inverse problem. A sensitivity analysis based on a stochastic spectral framework is first investigated to study the impact of uncertain input data on stagnation-point measurements. An original backward uncertainty propagation method is then proposed, for which only the uncertainties that have the most impact are retained. |
