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Experiments in Fluids

Erschienen in:

01.07.2008 | Letter

Thermoacoustically driven flame motion and heat release variation in a swirl-stabilized gas turbine burner investigated by LIF and chemiluminescence

verfasst von: W. Hubschmid, R. Bombach, A. Inauen, F. Güthe, S. Schenker, N. Tylli, W. Kreutner

Erschienen in: Experiments in Fluids | Ausgabe 1/2008

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Abstract

Laser-induced fluorescence and chemiluminescence, both phase-locked to the dominant acoustic oscillation, are used to investigate phenomena related to thermoacoustic instability in a swirl-stabilized industrial scale gas turbine burner. The observed sinusoidal phase-averaged flame motion in axial (main flow) direction is analyzed using different schemes for defining the flame position. Qualitative agreement between experimental data and theoretical analysis of the observed flame motion is obtained, interpreted as originating primarily from variation of the burning velocity. The heat release variation during an acoustic cycle is determined from the sinusoidally varying total OH* chemiluminescence intensity.

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Titel: Thermoacoustically driven flame motion and heat release variation in a swirl-stabilized gas turbine burner investigated by LIF and chemiluminescence
verfasst von: W. Hubschmid
R. Bombach
A. Inauen
F. Güthe
S. Schenker
N. Tylli
W. Kreutner
Publikationsdatum: 01.07.2008
Verlag: Springer-Verlag
Erschienen in: Experiments in Fluids / Ausgabe 1/2008
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-008-0497-1

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