Combustion, Explosion, and Shock Waves

, Volume 45, Issue 2, pp 119–125 | Cite as

Splitting flames in a narrow channel with a temperature gradient in the walls

  • S. S. Minaev
  • E. V. Sereshchenko
  • R. V. Fursenko
  • A. Fan
  • K. Maruta
Article

Abstract

A possibility of simultaneous formation of two chemical reaction fronts during nonstationary combustion of a gas in a microchannel with a temperature gradient in the walls is demonstrated. Combustion in a straight tube and in a gap between two disks with radial fuel injection is considered. In both cases, the characteristic transverse size of the channel is smaller than the critical diameter determined for the ambient temperature, and gas combustion occurs in the region where the wall temperature is higher than the ambient temperature. A numerical study of flame repetitive extinction/ignition (FREI) demonstrated a possibility of simultaneous formation of two chemical reaction fronts in the hot region of the channel. One front corresponds to conventional flame propagating upstream from the hot to the cold part of the channel, and the other front moves in the downstream direction and decays as the fuel burns out. Based on this study, a new mechanism of ignition and incomplete combustion of the combustible mixture in microsystems is proposed.

Key words

microcombustion instability ignition incomplete combustion of the mixture 

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References

  1. 1.
    N. I. Kim, S. Kato, T. Kataoka, et al., “Flame stabilization and emission of small swiss-roll combustors as heaters,” Combust. Flame, 141, 229–240 (2005).CrossRefGoogle Scholar
  2. 2.
    V. V. Zamashchikov and S. S. Minaev, “Limits of flame propagation in a narrow channel with gas filtration,” Combust., Expl., Shock Waves, 37, No. 1, 21–26 (2001).CrossRefGoogle Scholar
  3. 3.
    V. V. Zamashchikov, “Experimental investigation of gas combustion regimes in narrow tubes,” Combust. Flame, 108, No. 3, 357–359 (1997).CrossRefGoogle Scholar
  4. 4.
    R. V. Fursenko, S. S. Minaev, and V. S. Babkin, “Thermal interaction of two flame fronts propagating in channels with opposing gas flows,” Combust., Expl., Shock Waves, 37, No. 5, 493–500 (2001).CrossRefGoogle Scholar
  5. 5.
    E. Sereshchenko, S. Minaev, and R. Fursenko, “Theoretical and experimental investigation of premixed flame stabilization in single pass counterflow microcombustor,” in: Proc. of the 6th Asia-Pacific Conf. on Combustion ASPACC 07 (2007), p. 567.Google Scholar
  6. 6.
    K. Maruta, T. Kataoka, N. I. Kim, S. Minaev, and R. Fursenko, “Characteristics of combustion in a narrow channel with a temperature gradient,” Proc. Combust. Inst., 30, 2429–2436 (2005).CrossRefGoogle Scholar
  7. 7.
    K. Maruta, J. K. Parc, K. C. Oh, T. Fujimori, S. S. Minaev, and R. V. Fursenko, “Characteristics of microscale combustion in a narrow heated channel,” Combust., Expl., Shock Waves, 40, No. 5, 516–523 (2004).CrossRefGoogle Scholar
  8. 8.
    S. Minaev, K. Maruta, and R. Fursenko, “Nonlinear dynamics of flame in a narrow channel with a temperature gradient,” Combust. Theory Modelling, 11, No. 2, 187 (2007).MATHCrossRefMathSciNetGoogle Scholar
  9. 9.
    G. A. Fateev, O. S. Rabinovich, and M. A. Silenkov, “Oscillatory combustion of a gas mixture blow through a porous medium or a narrow tube,” Proc. Combust. Inst., 27, 3147–3153 (1998).Google Scholar
  10. 10.
    S. Kumar, K. Maruta, and S. Minaev, “Pattern formation of flames in radial microchannels with lean methane-air mixtures,” Phys. Rev. E, 75, No. 1 (2007).Google Scholar
  11. 11.
    S. Kumar, K. Maruta, and S. Minaev, “On the formation of multiple rotating pelton-like flame structures in radial microchannels with lean methane-air mixtures,” Proc. Combust. Inst., 31, 3261–3268 (2007).CrossRefGoogle Scholar
  12. 12.
    S. Minaev, R. Fursenko, N. Bakirova, S. Kumar, and K. Maruta, “Modeling of traveling structures in radial microchannels with a wall temperature gradient,” in: Proc. of 6th Asia-Pacific Conf. on Combustion ASPACC 07 (2007), pp. 546–549.Google Scholar
  13. 13.
    C. J. Sun and C. K. Law, “On the consumption of fuel pockets via inwardly propagating flames,” Proc. Combust. Inst., 27, 963–970 (1998).Google Scholar

Copyright information

© MAIK/Nauka 2009

Authors and Affiliations

  • S. S. Minaev
    • 1
  • E. V. Sereshchenko
    • 1
  • R. V. Fursenko
    • 1
  • A. Fan
    • 2
  • K. Maruta
    • 2
  1. 1.Khristianovich Institute of Theoretical and Applied Mechanics, Siberian DivisionRussian Academy of SciencesNovosibirskRussia
  2. 2.Institute of Fluid ScienceTohoku UniversitySedaiJapan

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