TRYOEN, Julie; CONGEDO, Pietro Marco; ABGRALL, Remi; MAGIN, Thierry; VILLEDIEU, Nadège

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TRYOEN, Julie
Parallel tools for Numerical Algorithms and Resolution of essentially Hyperbolic problems [BACCHUS]

CONGEDO, Pietro Marco
Parallel tools for Numerical Algorithms and Resolution of essentially Hyperbolic problems [BACCHUS]

ABGRALL, Remi
Parallel tools for Numerical Algorithms and Resolution of essentially Hyperbolic problems [BACCHUS]

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2013-09-10

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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.< Leer menos

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Sensitivity analysis and characterization of the uncertain input data for the EXPERT vehicle

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