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Stability analysis of thermo-acoustic nonlinear eigenproblems in annular combustors. Part II. Uncertainty quantification

Magri, Luca and Bauerheim, Michaël and Nicoud, Franck and Juniper, Matthew P. Stability analysis of thermo-acoustic nonlinear eigenproblems in annular combustors. Part II. Uncertainty quantification. (2016) Journal of Computational Physics, 325. 411-421. ISSN 0021-9991

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Official URL: http://doi.org/10.1016/j.jcp.2016.08.043

Abstract

Monte Carlo and Active Subspace Identification methods are combined with first- and second-order adjoint sensitivities to perform (forward) uncertainty quantification analysis of the thermo-acoustic stability of two annular combustor configurations. This method is applied to evaluate the risk factor, i.e., the probability for the system to be unstable. It is shown that the adjoint approach reduces the number of nonlinear-eigenproblem calculations by as much as the Monte Carlo samples.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > University of Cambridge (UNITED KINGDOM)
Other partners > Stanford University (USA)
Other partners > Eidgenössische Technische Hochschule Zürich - ETHZ (SWITZERLAND)
Other partners > Université de Montpellier (FRANCE)
Laboratory name:
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Deposited By: Michael Bauerheim
Deposited On:06 May 2019 14:05

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