Advertisement

Large Eddy Simulation of Stationary Premixed Flames Using a Subgrid Flamelet Approach

  • V. K. Chakravarthy
  • S. Menon
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 54)

Abstract

A subgrid combustion model is used to simulate premixed planar flames stabilized by stagnating flows and a confined swirl stabilized flame in an engineering combustor. Flamelet type combustion is assumed for both types of flames and experimental conditions are used for the simulations. The geometric characteristics of the flame surfaces and their effects on fluid dynamics are well predicted for the former type of flames. For the combustor simulation, the qualitative effects of heat release on the flow field are captured. The turbulence predictions in the combustor is highly sensitive to the characteristics of inflow turbulence. The turbulence modeling capability needs to be improved in order to better test the model in this case.

Keywords

Large Eddy Simulation Premix Flame Flame Speed Flame Surface Direct Numerical Simulation Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bray, K., Libby, P., and Moss, J. (1984). Flamelet crossing frequencies and mean reaction rates in premixed turbulent combustion. Combustion Science and Technology, 41:143–172.CrossRefGoogle Scholar
  2. Chakravarthy, V. and Menon, S. (1997). Characteristics of a subgrid model for turbulent premixed combustion. AIAA-97-3331.Google Scholar
  3. Chakravarthy, V. K. and Menon, S. (1999). Modeling of turbulent premixed flames in the flamelet regime. In First International Symposium on TURBULENCE and SHEAR FLOW PHENOMENA, to appear.Google Scholar
  4. Cheng, R. (1995). Velocity and scalar characteristics of premixed turbulent flames stabilized by weak swirl. Combustion and Flame, 101:1–14.CrossRefGoogle Scholar
  5. Cheng, R. and Shepherd, I. (1989). A comparison of the velocity and scalar spectra in premixed turbulent flames. Combustion and Flame, 78:205–221.CrossRefGoogle Scholar
  6. Cheng, R. and Shepherd, I. (1991). The influence of burner geometry on premixed turbulent flame propagation. Combustion and Flame, 85:7–26.CrossRefGoogle Scholar
  7. Cho, P., Law, C., Cheng, R., and Shepherd, I. (1988). Velocity and scalar fields of a turbulent premixed flame in a stagnation flow. In Twenty-second Symposium (International) on Combustion, pages 739–745.Google Scholar
  8. Cho, P., Law, C., Hertzberg, J., and Cheng, R. (1986). Structure and propagation of turbulent premixed flame stabilized in a stagnation flow. In Twenty-first Symposium (International) on Combustion, pages 1493–1499.Google Scholar
  9. Corrsin, S. (1951). On the spectrum of isotropic temperature fluctuations in isotropic turbulence. Journal of Applied Physics, 22:469–473.MathSciNetADSzbMATHCrossRefGoogle Scholar
  10. Driscoll, J., Sutkus, D., Roberts, W., Post, M., and Goss, L. (1994). Strain exerted by a vortex on a flame — determined from velocity field images. Combustion Science and Technology, 96:213–229.CrossRefGoogle Scholar
  11. Kerstein, A. R. (1989). Linear-eddy model of turbulent transport ii. Combustion and Flame, 75:397–413.ADSCrossRefGoogle Scholar
  12. Kim, W.-W. and Menon, S. (1998). Large eddy simulation of reacting flow in a dump combustor. AIAA-98-2432.Google Scholar
  13. Kim, W.-W., Menon, S., and Mongia, H. C. (1999). Large eddy simulation of a gas turbine combustor flow. Combustion Science and Technology. To appear.Google Scholar
  14. Lindstedt, R. P. and Vaos, E. M. (1999). Modeling of premixed turbulent flames with second moment methods. Combustion and Flame, 116:461–485.CrossRefGoogle Scholar
  15. Menon, S. and Calhoon, W. H. (1996). Subgrid mixing and molecular transport modeling in a reacting shear layer. In Twenty-sixth Symposium (International) on Combustion, pages 59–66.Google Scholar
  16. Menon, S., McMurtry, P., and Kerstein, A. (1993). A linear eddy mixing model for les of turbulent combustion. In Galerpin, B. and Orszag, S., editors, LES of Complex Engineering and Geophysical flows, pages 287–314. Cambridge Univ. Press.Google Scholar
  17. Mounaim-Rousselle, C. and Gokalp, I. (1994). Strain effects on the structure of counterflowing turbulent premixed flames. In Twenty-fifth Symposium (International) on Combustion, pages 1199–1205.Google Scholar
  18. Mydlarski, L. and Warhaft, Z. (1998). Passive scalar statistics in high-peclet number grid turbulence. Journal of Fluid Mechanics, 358:135–175.ADSCrossRefGoogle Scholar
  19. Obukhov, A. (1949). Structure of temperature field in turbulent flows. Izv. Akad. Nauk. SSSR, Geogr. Geofiz., 13:58–69.Google Scholar
  20. Poinsot, T., Veynante, D., and Candel, S. M. (1991). Quenching processes and premixed turbulent combustion diagrams. Journal of Fluid Mechanics, 228:561–605.ADSGoogle Scholar
  21. Schumann, U. (1975). Subgrid scale model for finite difference simulations of turbulent lows in plane channels and annuli. Journal of Computational Physics, 18:376–404.MathSciNetADSzbMATHCrossRefGoogle Scholar
  22. Shepherd, I. and Ashurst, W. T. (1992). Flame front geometry in premixed turbulent flames. In Twenty-fourth Symposium (International) on Combustion, pages 485–491.Google Scholar
  23. Shepherd, I. G. (1996). Flame surface density and burning rate in premixed turbulent flames. In Twenty-sixth Symposium (International) on Combustion, pages 373–379.Google Scholar
  24. Smith, T. and Menon, S. (1996). One-dimensional simulations of freely propagating turbulent premixed flames. Combustion Science and Technology, 128:99–130.CrossRefGoogle Scholar
  25. Smith, T. and Menon, S. (1998). Subgrid combustion modeling for premixed turbulent reacting flows. AIAA-98-0242.Google Scholar
  26. Sreenivasan, K. (1996). The passive scalar spectrum and the obukhov-corrsin constant. The Physics of Fluids, 8(1):189–196.MathSciNetADSzbMATHCrossRefGoogle Scholar
  27. Trouve, A. and Poinsot, T. (1994). The evolution equation for the flame surface density in turbulent premixed combustion. Journal of Fluid Mechanics, 278:1–31.MathSciNetADSzbMATHCrossRefGoogle Scholar
  28. Veynante, D., Trouve, A., Bray, K., and Mantel, T. (1997). Gradient and counter gradient scalar transport in turbulent premixed flames. Journal of Fluid Mechanics, 332:263–293.ADSzbMATHGoogle Scholar
  29. Yakhot, V. (1988). Propagation velocity of premixed turbulent flames. Combustion Science and Technology, 60:191–214.MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • V. K. Chakravarthy
    • 1
  • S. Menon
    • 1
  1. 1.School of Aerospace EngineeringGeorgia Institute of TechnologyAtlantaUSA

Personalised recommendations