The flame transfer function (FTF) of a premixed swirl burner was identified from time series generated with CFD simulation of compressible, turbulent, reacting flow at non-adiabatic conditions. Results were validated against experimental data. For large eddy simulation (LES), the Dynamically Thickened Flame combustion model with one step kinetics was used. For unsteady simulation in a Reynolds-averaged Navier-Stokes framework (URANS), the Turbulent Flame Closure model was employed. The FTF identified from LES shows quantitative agreement with experiment for amplitude and phase, especially for frequencies below 200 Hz. At higher frequencies, the gain of the FTF is underpredicted. URANS results show good qualitative agreement, capturing the main features of the flame response. However, the maximum amplitude and the phase lag of the FTF are underpredicted. Using a low-order network model of the test rig, the impact of the discrepancies in predicted FTFs on frequencies and growth rates of the lowest order eigenmodes were assessed. Small differences in predicted FTFs were found to have a significant impact on stability limits. Stability behavior in agreement with experimental data was achieved only with the LES-based flame transfer function.
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ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition
June 6–10, 2011
Vancouver, British Columbia, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5462-4
PROCEEDINGS PAPER
Comparative Validation Study on Identification of Premixed Flame Transfer Function Available to Purchase
Luis Tay-Wo-Chong,
Luis Tay-Wo-Chong
TU Munich, Garching, German
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Sebastian Bomberg,
Sebastian Bomberg
TU Munich, Garching, German
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Thomas Komarek,
Thomas Komarek
TU Munich, Garching, German
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Wolfgang Polifke
Wolfgang Polifke
TU Munich, Garching, German
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Luis Tay-Wo-Chong
TU Munich, Garching, German
Sebastian Bomberg
TU Munich, Garching, German
Ahtsham Ulhaq
TU Munich, Garching, German
Thomas Komarek
TU Munich, Garching, German
Wolfgang Polifke
TU Munich, Garching, German
Paper No:
GT2011-46342, pp. 1109-1118; 10 pages
Published Online:
May 3, 2012
Citation
Tay-Wo-Chong, L, Bomberg, S, Ulhaq, A, Komarek, T, & Polifke, W. "Comparative Validation Study on Identification of Premixed Flame Transfer Function." Proceedings of the ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. Volume 2: Combustion, Fuels and Emissions, Parts A and B. Vancouver, British Columbia, Canada. June 6–10, 2011. pp. 1109-1118. ASME. https://doi.org/10.1115/GT2011-46342
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