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Sensitivity analysis of thermo-acoustic eigenproblems with adjoint methods

Juniper, Matthew P. and Magri, Luca and Bauerheim, Michaël and Nicoud, Franck Sensitivity analysis of thermo-acoustic eigenproblems with adjoint methods. (2014) In: CTR - Summer Program, 6 July 2014 - 1 August 2014 (Stanford, United States).

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Official URL: https://web.stanford.edu/group/ctr/Summer/SP14/06_Combustion/09_juniper.pdf

Abstract

This paper outlines two new applications of adjoint methods in the study of thermoacoustic instability. The first is to calculate gradients for the active subspace method, which is used in uncertainty quantification. The second is to calculate gradients in a nonlinear thermo-acoustic Helmholtz solver. Two methods are presented. The first, which uses the discrete adjoint approach, is specifically for nonlinear Helmholtz eigenvalue problems that are solved iteratively. The second, which uses a hybrid adjoint approach, is more general and can be applied to both problems.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02166760
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > University of Cambridge (UNITED KINGDOM)
Other partners > Société nationale d'étude et de constructions de moteurs d'avion - SNECMA (FRANCE)
Other partners > Université de Montpellier (FRANCE)
Laboratory name:
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Deposited By: Michael Bauerheim
Deposited On:25 Jun 2019 15:20

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