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http://dx.doi.org/10.5139/JKSAS.2006.34.7.079

Large Eddy Simulation of Swirling Premixed Flames in a Model Gas Turbine Combustor  

황철홍 (인하대학교)
이창언 (인하대학교)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.34, no.7, 2006 , pp. 79-88 More about this Journal
Abstract
In the present paper, the swirl flow structure and flame characteristics of turbulent premixed combustion in a model gas turbine combustor are investigated using large eddy simulation(LES). A G-equation flamelet model is employed to simulate the unsteady flame behavior. When inlet swirl number is increased, the distinct flow structures, such as the shapes of corner recirculation and center toroidal recirculation zone, are observed and the flame length is shorted gradually. Also, the phenomena of flashback are identified at strong swirl intensity. In order to get the accurate description of unsteady flame behavior, the predictive ability of the acoustic wave in a combustor is primarily evaluated. It is found that the vortex generated near the edge of step plays an important role in the flame fluctuation. Finally it is examined systematically that the flame and heat release fluctuation are coupled strongly to the vortex shedding generated by swirl flow and acoustic wave propagation from the analysis of flame-vortex interaction.
Keywords
Large eddy simulation; Turbulent premixed flame; Swirling flow; Flame instability;
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  • Reference
1 Sivasegaram, S. and Whitelaw, J., 'The influence of swirl on oscillations in ducted premixed flames', Combust. Sci. and Tech., Vol. 138, 1991, pp. 195-205
2 Gupta, A. K., Lilley, D. G. and Syred, N., Swirl Flows, ABACUS PRESS, 1984
3 Hwang, C. H. and Lee, C. E., 'Performance evaluation of large eddy simulation for recirculating and swirling flows', Transactions of KSME B, Vol. 30, No.4, 2006, in press
4 Broda, J. C; Seo, S., Santoro, R. J., Shirhattikar, G. and Yang, V., 'An experimental study of combustion dynamics of a premixed swirl injector', Proceedings of the Combustion Institute, Vol. 27, 1998, pp. 1849 - 1856
5 MacCormack, 'The effects of viscosity in hyper-velocity impact cratering', AIAA Paper 69-354, 1969
6 Anacleto, P. M., Fernandes, E. C. Heitor, M. V. and Shtork, S. I., 'Swirl flow structure and flame characteristics in a model lean premixed combustor', Combust. Sci. and Tech., Vol. 175, 2003, pp. 1369-1388   DOI
7 Poinsot, T., Trouve, A., Veynante, D., Candal, S. and Esposito, E., 'Vortex driven acoustically coupled combustion instabilities', J. Fluid Mech., Vol. 177, 1987, pp. 265-292   DOI   ScienceOn
8 Poinsot, T. and Veynante, D., Theoretical numerical combustion, Edwards, 2001
9 Menon, S., Yeung, P. K. and Kim, W. W., 'Effect of subgrid models on the computed interscale energy transfer in isotropic turbulence', Computers and Fluids, Vol. 25, No.2, 1996, pp. 165-180   DOI   ScienceOn
10 Meinke, M., Schroder, W., Krause, E. and Rister, Th., 'A comparison of second- and sixth -order methods for large-eddy simulations', Computers & Fluids, Vol. 31, 2002, pp. 695 - 718   DOI   ScienceOn
11 Kim, W. W. and Menon, S., 'A new dynamic one-equation subgrid-scale model for large-eddy simulation', AIAA-95-0356, 1995
12 Menon, S. and Jou, W. H., 'Large-eddy simulations of combustion instability in an axisymmetric ramjet combustor', Combust. Sci. and Tech., Vol. 75, 1991, pp. 53-72   DOI   ScienceOn
13 Lipatnikov, A. N. and Chomiak, J., 'Turbulent flame speed and thickness phenomenology, evaluation and application in multidimensional simulations', Progress in Energy and Combustion Science, Vol. 28, 2000, pp. 1 -74
14 Kee, R. J., Grear, J. F., Smooke, M. D. and Miller, J. A., 'A fortran program for modeling steady laminar one-dimensional premixed flames', SAND85-8240, 1994
15 Rayleigh, J. W. S., The Theory of Sound, Vol. II, Dover Publications, New York, 1945
16 Huang, V., Sung, H. G., Heish, S. Y. and Yang, V., 'Large-eddy simulation of combustion dynamics of lean-premixed swirlstabilized combustor', Journal of Propulsion and Power, Vol. 19, No.5, 2003, pp. 782-794   DOI   ScienceOn
17 Huang, Y. and Yang, V., 'Effect of swirl on combustion dynamics in a lean-premixed swirl-stabilized combustor', Proceedings of the Combustion Institute, Vol. 30, 2005, pp. 1775 - 1782
18 Seo, S., 'Parametric study of lean premixed combustion instability in a pressurized model gas turbine combustor', Ph. D. Thesis, The Pennsylvania State University, 1999
19 Lilley, D. G., 'Swirl flows in combustion: a review', AIAA Journal, Vol. 15, No.8, 1977, pp. 1063 - 1078   DOI   ScienceOn
20 Kulsheimer, C. and Buchner, H., 'Combustion dynamics of turbulent swirling flames', Combustion and Flame, Vol. 131, 2002, pp. 70-84   DOI   ScienceOn
21 Bahr, D., 'Aircraft turbine engine NOx emissions abatement', In Culick, F., Heitor, M. V. and Whitelaw, J. H. (Eds.) Unsteady Combustion, Kluwer Academic, 1995, pp. 234 - 264
22 Poinsot, T. J. and Lele, S. K., 'Boundary conditions for direct simulations of compressible viscous flows', J. Computational Physics, Vol. 101, 1992, pp. 104-129   DOI   ScienceOn