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Research Papers: Gas Turbines: Combustion, Fuels, and Emissions

Large Eddy Simulation-Based Study of the Influence of Thermal Boundary Condition and Combustor Confinement on Premix Flame Transfer Functions

[+] Author and Article Information
Wolfgang Polifke

e-mail: polifke@td.mw.tum.de
Lehrstuhl für Thermodynamik,
Technische Universität München,
Boltzmannstrasse 15,
85748 Garching, Germany

1Corresponding author.

Contributed by the International Gas Turbine Institute (IGTI) for publication in the Journal of Engineering for Gas Turbines and Power. Manuscript received July 16, 2012; final manuscript received August 6, 2012; published online January 8, 2013. Editor: Dilip R. Ballal.

J. Eng. Gas Turbines Power 135(2), 021502 (Jan 08, 2013) (9 pages) Paper No: GTP-12-1282; doi: 10.1115/1.4007734 History: Received July 16, 2012; Revised August 06, 2012

The influence of the thermal boundary condition at the combustor wall and combustor confinement on the dynamic flame response of a perfectly premixed axial swirl burner is investigated. Large eddy simulations are carried out using the dynamically thickened flame combustion model. Then system identification methods are used to determine the flame transfer function (FTF) from the computed time series data. Two configurations are compared against a reference case with a 90 mm × 90 mm combustor cross section and nonadiabatic walls: (1) a combustor cross section similar to the reference case with adiabatic combustor walls, and (2) a different confinement (160 mm × 160 mm) with nonadiabatic walls. It is found that combustor confinement and thermal boundary conditions have a noticeable influence on the flame response due to differences in the flame shape and flow field. In particular, the FTF computed with an adiabatic wall boundary condition which produces a flame with a significant heat release in both shear layers, differs significantly from the FTF with nonadiabatic walls, where the flame stabilizes only in the inner shear layer. The observed differences in the flow field and flame shape are discussed in relation to the unit impulse response of the flame. The impact of the differences in the FTF on stability limits is analyzed with a low-order thermoacoustic model.

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References

Lieuwen, T. and Yang, V., 2005, Combustion Instabilities in Gas Turbine Engines: Operational Experience, Fundamental Mechanisms and Modelling, American Institute of Aeronautics and Astronautics, Reston, VA.
Poinsot, T. and Veynante, D., 2005, Theoretical and Numerical Combustion, 2nd ed., R. T. Edwards, Philadelphia.
Polifke, W., 2010, “Low-Order Analysis Tools for Aero- and Thermo-Acoustic Instabilities,” Advances in Aero-Acoustics and Thermo-Acoustics, C.Schram, ed., von Karman Institute for Fluid Dynamics, Brussels.
Leandro, R., Huber, A., and Polifke, W., 2010, “taX—A Low-Order Modeling tool for Thermo- and Aero-Acoustic Instabilities,” Technical Report, TU München, www.td.mw.tum.de/tum-td/en/forschung/infrastruktur/scientific_comp/ taX_manual.pdf
Kaess, R., Polifke, W., Poinsot, T., Noiray, N., Durox, D., Schuller, T., and Candel, S., 2008, “CFD-Based Mapping of the Thermo-Acoustic Stability of a Laminar Premix Burner,” Proceedings of the 12th Biennial Summer Program, Center for Turbulence Research, Stanford, CT, July 6–August 1.
Duchaine, F. and Poinsot, T., 2010, “Sensitivity of Flame Transfer Functions of Laminar Flames,” Proceedings of the Summer Program CTR, Stanford.
Schmitt, P., Poinsot, T., Schuermans, B., and Geigle, K. P., 2007, “Large-Eddy Simulation and Experimental Study of Heat Transfer, Nitric Oxide Emissions and Combustion Instability in a Swirled Turbulent High-Pressure Burner,” J. Fluid Mech., 570, pp. 17–46. [CrossRef]
Durox, D., Schuller, T., Noiray, N., and Candel, S., 2009, “Experimental Analysis of Nonlinear Flame Transfer Functions for Different Flame Geometries,” Proc. Combust. Inst., 32(1), pp. 1391–1398. [CrossRef]
Beltagui, S. and MacCallum, N., 1976, “Aerodynamics of Vane-Swirled Flames in Furnaces,” J. Inst. Fuel, 49(401), pp. 183–193.
Fu, Y., Cai, J., Jeng, S., and Mongia, H., 2005, “Confinement Effects on the Swirling Flow of a Counter-Rotating Swirl Cup,” Proceedings of the ASME Turbo Expo 2005, Reno, NV, June 6–9, ASME Paper No. GT2005-68622. [CrossRef]
Fanaca, D., Alemela, P., Hirsch, C., Sattelmayer, T., and Schuermanns, B., 2010, “Comparison of the Flow Field of a Swirl Stabilized Premixed Burner in an Annular and a Single Burner Combustion Chamber,” ASME J. Eng. Gas Turbines Power, 132(6), p. 071502. [CrossRef]
Hauser, M., Hirsch, C., and Sattelmayer, T., 2011, “Influence of the Confinement on the Flame Transfer Function,” 18th International Congress on Sound and Vibration, Rio de Janeiro, Brazil, July 10–14.
Birbaud, A. L., Durox, D., Ducruix, S., and Candel, S., 2007, “Dynamics of Confined Premixed Flames Submitted to Upstream Acoustic Modulations,” Proc. Combust. Inst., 31(1), pp. 1257–1265. [CrossRef]
Tay-Wo-Chong, L., Bomberg, S., Ulhaq, A., Komarek, T., and Polifke, W., 2012, “Comparative Validation Study on Identification of Premixed Flame Transfer Function,” ASME J. Eng. Gas Turbines Power, 134(2), p. 021502. [CrossRef]
Kopitz, J., Bröcker, E., and Polifke, W., 2005, “Characteristics-Based Filter for Identification of Planar Acoustic Waves in Numerical Simulation of Turbulent Compressible Flow,” 12th International Congress on Sound and Vibration, Lisbon, Portugal, July 11–14.
Polifke, W., 2010, “System Identification for Aero- and Thermo-Acoustic Applications,” Advances in Aero-Acoustics and Thermo-Acoustics, C.Schram, ed., von Karman Institute for Fluid Dynamics, Brussels.
Polifke, W., Poncet, A., Paschereit, C. O., and Döbbeling, K., 2001, “Reconstruction of Acoustic Transfer Matrices by Instationary Computational Fluid Dynamics,” J. Sound Vib., 245(3), pp. 483–510. [CrossRef]
Huber, A. and Polifke, W., 2009, “Dynamics of Practical Premixed Flames—Part I: Model Structure and Identification,” Int. J. Spray Combust. Dyn., 1(2), pp. 199–228. [CrossRef]
Tay-Wo-Chong, L., Komarek, T., Kaess, R., Föller, S., and Polifke, W., 2010, “Identification of Flame Transfer Functions From LES of a Premixed Swirl Burner,” Proceedings of the ASME Turbo Expo 2010, Glasgow, UK, June 14–18, ASME Paper No. GT2010-22769. [CrossRef]
Colin, O., Ducros, F., Veynante, D., and Poinsot, T., 2000, “A Thickened Flame Model for Large Eddy Simulations of Turbulent Premixed Combustion,” Phys. Fluids, 12(7), pp. 1843–1863. [CrossRef]
Legier, J., Poinsot, T., and Veynante, D., 2000, “Large Eddy Simulation Model for Premixed and Non-Premixed Turbulent Combustion,” Proceedings of the 2000 Summer Program, Center for Turbulence Research, Stanford, CT, July 2–27, pp. 157–168.
Komarek, T. and Polifke, W., 2010, “Impact of Swirl Fluctuations on the Flame Response of a Perfectly Premixed Swirl Burner,” ASME J. Eng. Gas Turbines Power, 132, p. 061503. [CrossRef]
CERFACS, 2008, “The AVBP Code,” http://www.cerfacs.fr/4-26334-The-AVBP-code.php
Nicoud, F. and Ducros, F., 1999, “Subgrid-Scale Stress Modeling Based on the Square of the Velocity Gradient Tensor,” Flow, Turbul. Combust., 62, pp. 183–200. [CrossRef]
Tay-Wo-Chong, L., 2012, “Numerical Simulation of the Dynamics of Turbulent Swirling Flames,” Ph.D. thesis, Technische Universit¨at München, Garching, Germany.
Moureau, V., Lartigue, G., Sommerer, Y., Angelberger, C., Colin, O., and Poinsot,T., 2005, “Numerical Methods for Unsteady Compressible Multi-Component Reacting Flows on Fixed and Moving Grids,” J. Comput. Phys., 202, pp. 710–736. [CrossRef]
Föller, S., Kaess, R., and Polifke, W., 2010, “Determination of Acoustic Transfer Matrices Via Large Eddy Simulation and System Identification,” 16th AIAA/CEAS Aeroacoustics Conference, Stockholm, Sweden, June 7–9, Paper No. AIAA-2010-3998.
Kaess, R., Huber, A., and Polifke, W., 2008, “Time-Domain Impedance Boundary Condition for Compressible Turbulent Flows,” 14th AIAA/CEAS Aeroacoustics Conference, Vancouver, May 5–9, Paper No. AIAA-2008-2921.
Poinsot, T. and Lele, S., 1992, “Boundary Conditions for Direct Simulation of Compressible Viscous Flows,” J. Comput. Phys., 101, pp. 104–129. [CrossRef]
Polifke, W., Wall, C., and Moin, P., 2006, “Partially Reflecting and Non-Reflecting Boundary Conditions for Simulation of Compressible Viscous Flow,” J. Comput. Phys., 213, pp. 437–449. [CrossRef]
Fanaca, D., 2009, private communication.
Schuller, T., Durox, D., and Candel, S., 2003, “A Unified Model for the Prediction of Laminar Flame Transfer Functions: Comparisons Between Conical and V-Flame Dynamics,” Combust. Flame, 134, pp. 21–34. [CrossRef]
Hirsch, C., Fanaca, D., Reddy, P., Polifke, W., and Sattelmayer, T., 2005, “Influence of the Swirler Design on the Flame Transfer Function of Premixed Flames,” Proceedings of the ASME Turbo Expo 2005, Reno, NV, June 6–9, ASME Paper No. GT2005-68195. [CrossRef]
Kim, K., Lee, J., Lee, H., Quay, B., and Santavicca, D., 2009, “Characterization of Forced Flame Response of Swirl-Stabilized Turbulent Premixed Flames,” Proceedings of the ASME Turbo Expo 2009, Orlando, FL, June 8–12, ASME Paper No. GT2009-60031. [CrossRef]
Kim, K., Lee, H., Lee, J., Quay, B., and Santavicca, D., 2009, “Flame Transfer Function Measurement and Instability Frequency Prediction Using a Thermoacoustic Model,” Proceedings of the ASME Turbo Expo 2009, Orlando, FL, June 8–12, ASME Paper No. GT2009-60026. [CrossRef]
Kim, K., Lee, J., Quay, B., and SantaviccaD., 2010, “Spatially Distributed Flame Transfer Functions for Predicting Combustion Dynamics in Lean Premixed Gas Turbine Combustors,” Combust. Flame, 157(9), pp. 1718–1730. [CrossRef]
Schuller, T., Durox, D., and Candel, S., 2003, “Self-Induced Combustion Oscillations of Laminar Premixed Flames Stabilized on Annular Burners,” Combust. Flame, 135, pp. 525–537. [CrossRef]
Palies, P., Durox, D., Schuller, T., and Candel, S., 2010, “The Combined Dynamics of Swirler and Turbulent Premixed Swirling Flames,” Combust. Flame, 157, pp. 1698–1717. [CrossRef]
Palies, P., Schuller, T., Durox, D., Gicquel, L. Y. M., and Candel, S., 2011, “Acoustically Perturbed Turbulent Premixed Swirling Flames,” Phys. Fluids, 23(3), p. 037101. [CrossRef]
Schuermans, B., Bellucci, V., Guethe, F., Meili, F., Flohr, P., and Paschereit, O., 2004, “A Detailed Analysis of Thermoacoustic Interaction Mechanisms in a Turbulent Premixed Flame,” Proceedings of the ASME Turbo Expo 2004, Vienna, June 14–17, ASME Paper No. GT2004-53831. [CrossRef]
Polifke, W. and Lawn, C., 2007, “On the Low-Frequency Limit of Flame Transfer Functions,” Combust. Flame, 151(3), pp. 437–451. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Scheme of the numerical setup of the burner

Grahic Jump Location
Fig. 2

Mean axial velocity in the combustor middle cross plane (see Fig. 1). (a) HC-NA, (b) HC-A, and (c) LC-NA. Zero mean axial velocity isolines are shown in black.

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Fig. 3

Mean axial velocity (top), mean tangential velocity (middle), and turbulent kinetic energy (bottom) profiles at different positions of the middle cross plane shown in Fig. 1

Grahic Jump Location
Fig. 4

Normalized spatial distribution of heat release: (a) HC-NA, (b) HC-A, and (c) LC-NA. Line-of-sight integrated heat release. Dump plane of combustor at axial position = 0 m.

Grahic Jump Location
Fig. 5

Area normalized axial heat release distribution

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Fig. 6

Identified flame transfer functions. Harmonic excitation at 100 Hz for high confinement cases.

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Fig. 7

Instantaneous reaction rate for one cycle with harmonic excitation at 100 Hz

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Fig. 8

UIR from the FTF time lag model

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Fig. 9

Flame transfer functions from the time lag model

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