Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Philip Buschmann"'
Publikováno v:
Combustion and Flame. 214:251-262
Thermoacoustic instabilities originate from the interaction of unsteady heat release rate associated with flames and the acoustic modes of a combustor. A feedback loop not involving the natural acoustic modes has been observed in single-flame configu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ee607b30611899a731421fca52a3a3f
https://doi.org/10.1016/j.combustflame.2019.11.006
https://doi.org/10.1016/j.combustflame.2019.11.006
Publikováno v:
Journal of Sound and Vibration. 520:116553
We propose a method to accelerate the solution of 3D FEM-discretized nonlinear eigenvalue problems by drastically reducing the problem dimension. Our method yields a reduced order model (ROM) via a projection onto a suitable subspace, with eigenpairs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df57aba62e0156e536d1c7188ceac99b
https://doi.org/10.1016/j.jsv.2021.116553
https://doi.org/10.1016/j.jsv.2021.116553
Publikováno v:
Journal of Engineering for Gas Turbines and Power
Journal of Engineering for Gas Turbines and Power, American Society of Mechanical Engineers, 2020, 142 (3), ⟨10.1115/1.4045076⟩
Journal of Engineering for Gas Turbines and Power, American Society of Mechanical Engineers, 2020, 142 (3), ⟨10.1115/1.4045076⟩
Gas turbine combustors are prone to undesirable combustion dynamics in the form of thermoacoustic oscillations. Analysis of the stability of thermoacoustic systems in the frequency domain leads to nonlinear eigenvalue problems (NLEVP); here, “nonli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::435053c15d27654456d730c6e43fac95
https://hal.archives-ouvertes.fr/hal-02959668
https://hal.archives-ouvertes.fr/hal-02959668
Exceptional points are found in the spectrum of a prototypical thermoacoustic system as the parameters of the flame transfer function are varied. At these points, two eigenvalues and the associated eigenfunctions coalesce. The system's sensitivity to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59a50652ecfff7fd3db51b49a64a3b5b
http://arxiv.org/abs/1807.08793
http://arxiv.org/abs/1807.08793