Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Modeling of Turbulent Nonpremixed Lifted Flames

  • Kim, Hoojoong (Department of Mechanical Engineering, Hanyang University) ;
  • Kim, Yongmo (Department of Mechanical Engineering, Hanyang University) ;
  • Ahn, Kook-Young (Korea Institute of Machinery and Materials)
  • Published : 2004.01.01
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Abstract

The present study has focused on numerical investigation on the flame structure, flame lift-off and stabilization in the partially premixed turbulent lifted jet flames. Since the lifted jet flames have the partially premixed nature in the flow region between nozzle exit and flame base, level set approach is applied to simulate the partially premixed turbulent lifted jet flames for various fuel jet velocities and co-flow velocities. The flame stabilization mechanism and the flame structure near flame base are presented in detail. The predicted lift-off heights are compared with the measured ones.

Keywords

References

  1. Broadwell, J. E., Dahm, W. J. A. and Mungal, M. G., 1984, 'Blowout of Turbulent Diffusion Flames,' 20th Symposium (international) on Combustion, pp. 303-310
  2. Chakravarthy, S. R. and Osher, S., 1985, AIAA-85-0363, 23rd Aerospace Science Meeting, Reno, NV
  3. Chen, M., Herrmann, M. and Peters, N., 2000, 'Flamelet Modeling of Lifted Turbulent Methane/Air and Propane/Air Jet Diffusion Flames,' 28th Symposium (International) on Combustion, pp. 167-174
  4. Kim, S. K. and Kim, Y. M., 2000, 'Prediction of Detailed Structure and NOx Formation Characteristics in Turbulent Nonpremixed Hydrogen Jet,' Comb. Sci. and Tech., Vol. 156, pp. 107-137 https://doi.org/10.1080/00102200008947299
  5. Kim, Y. M., Chen, C. P., Ziebarth, J. P. and Chen, Y. S., 1994, 'Prediction of Fast Transient Spray-Combustion Flows,' Numerical Heat Transfer, Vol. 25, pp. 21-42 https://doi.org/10.1080/10407789408955934
  6. Muniz, L. and Mungal, M. G., 1997, 'Instantaneous Flame-Stabilization Veloities in Lifted-Jet Diffusion Flames,' Combustion and Flame, Vol. 111, pp. 16-31 https://doi.org/10.1016/S0010-2180(97)00096-5
  7. Peters, N. and Williams, F. A., 1983, 'Lift-off Characteristics of Turbulent Jet Diffusion Flames,' AIAA Journal, Vol. 21, No. 3, 423-429 https://doi.org/10.2514/3.8089
  8. Peters, N., 2000, Turbulent Combustion, Cambridge University Press
  9. Pitts, W. M., 1988, 'Assessment of Theories for the Behavior and Blowout of Lifted Turbulent Jet Diffusion Flames,' 22nd Symposium (International) on Combustion, pp. 809-816
  10. Sussman, M., Smereka, P. and Osher, S., 1994, 'A Level Set Method for Computing Solutions to Incompressible Two Phase Flows,' J. Comp. Phys. Vol. 119, pp. 146-163 https://doi.org/10.1006/jcph.1994.1155
  11. Vanquickenborne, L. and van Tiggelen, A., 1966, 'The Stabilization Mechanism of Lifted Diffusion Flames,' Combustion and Flame, Vol. 10, pp. 59-69 https://doi.org/10.1016/0010-2180(66)90028-9