Advertisement

Combustion, Explosion and Shock Waves

, Volume 32, Issue 4, pp 395–398 | Cite as

Possibility of determining the velocities of turbulent and laminar flames at high initial temperatures

  • V. I. Manzhalei
  • V. A. Subbotin
Article
  • 22 Downloads

Abstract

A low-velocity detonation regime without self-ignition is discovered in which turbulent flame is held at a distance of several channel diameters behind the leading-shock wave due to gas “suction” to the turbulent boundary layer at the tube wall. The structure of such a detonation agrees principally with the structure of low-velocity detonation in a capillary with a laminar boundary layer. Calculation results for the distance from the shock wave to the flame agree with the experimental data. It is proposed to use the experimental value of the distance to determine flame velocities in a nonturbulent shock-heated gas under conditions of extremely short ignition delays. The domains of existence of the initial pressures of multiheaded and low-velocity detonations partially overlap.

Keywords

Boundary Layer Shock Wave Calculation Result Initial Temperature Turbulent Boundary Layer 
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. 1.
    V. I. Manzhalei, “Gaseous detonation in capillaries,” in:13th Int. Coll. on Dynamics of Explosions and Reactive Systems: Abstr. and Information, Nagoya Int. Center, Japan (1991).Google Scholar
  2. 2.
    V. I. Manzhalei, “Regimes of gas detonation in capillaries,”Fiz. Goreniya Vzryva,28, No. 3, 93–100 (1992).Google Scholar
  3. 3.
    V. I. Manzhalei, “Physical model of low-velocity detonation in gases,” in:Gas Dynamics of Explosion and Shock Waves and of Detonation and Supersonic Combustion: Abstracts All-Union Symp., Alma-Ata, 1991, Inst. of Hydrodynamics, Novosibirsk (1991).Google Scholar
  4. 4.
    A. R. Ubelohde and G. Munday, “Some current problems in the marginal detonation of gases,” in:Proc. 12th Int. Symp. on Combustion, Combust. Inst., Pittsburgh (1989), p. 809.Google Scholar
  5. 5.
    G. Dupre, R. Knystautas, and J. H. Lee, “Near-limit propagation of detonation in tubes,” in: Proc. 10th Int. Coll. on Dynamics of Explosions and Reactive Systems, Berkeley (1985).Google Scholar
  6. 6.
    C. Paillard, “Etude de la propagation et de l'extinction des flames de simple decomposition,” Thèse de Doctorat des Sciences Physiques, Orléans, France (1973).Google Scholar
  7. 7.
    H. Mirels, “Shock-tube limitation due to a turbulent wall-boundary layer,”Raketn. Tekh. Kosmonavt.,2, No. 1, 114 (1964).Google Scholar
  8. 8.
    V. R. Kuznetsov and V. A. Sabel'nikov,Turbulence and Combustion [in Russian], Nauka, Moscow (1986).Google Scholar
  9. 9.
    B. Lewis and G. Von Elbe,Combustion, Flames, and Explosions of Gases, Academic Press, New York-London (1961).Google Scholar
  10. 10.
    L. N. Khitrin and V. A. Popov (eds.),Fundamentals of the Combustion of Hydrocarbon Fuels [Russian translation], Izd. Inostr. Lit., Moscow (1960).Google Scholar

Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • V. I. Manzhalei
    • 1
  • V. A. Subbotin
    • 1
  1. 1.Lavrent'ev Institute of Hydrodynamics, Siberian DivisionRussian Academy of SciencesNovosibirsk

Personalised recommendations