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

被引：45

作者：

Magri, Luca ^{[1
,2
]}

Bauerheim, Michael ^{[3
]}

Nicoud, Franck ^{[4
]}

Juniper, Matthew P. ^{[2
]}

机构：

[1] Stanford Univ, Ctr Turbulence Res, Stanford, CA 94305 USA

[2] Univ Cambridge, Dept Engn, Cambridge, England

[3] Swiss Fed Inst Technol, CAPS Lab, Zurich, Switzerland

[4] Univ Montpellier, IMAG UMR CNRS 5149, Montpellier, France

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2016年 / 325卷

基金：

欧洲研究理事会;

关键词：

Thermo-acoustic stability; Uncertainty quantification; Annular combustors; Adjoint methods; AZIMUTHAL THERMOACOUSTIC MODES; PROPAGATION;

D O I：

10.1016/j.jcp.2016.08.043

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：411 / 421

页数：11

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