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

Abstract : 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.
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https://hal.inria.fr/hal-00859809
Contributor : Pietro Marco Congedo <>
Submitted on : Monday, September 9, 2013 - 2:55:11 PM
Last modification on : Thursday, February 11, 2021 - 2:56:43 PM
Long-term archiving on: : Thursday, December 12, 2013 - 10:10:31 AM

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  • HAL Id : hal-00859809, version 1

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Julie Tryoen, Pietro Marco Congedo, Remi Abgrall, Thierry Magin, Nadège Villedieu. Sensitivity analysis and characterization of the uncertain input data for the EXPERT vehicle. [Research Report] RR-8360, INRIA. 2013. ⟨hal-00859809⟩

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